398+ Gross Knock Knock Jokes That Are Weirdly Funny and Totally Clean

Some jokes are clever.

Others are so wonderfully gross that you cannot help but laugh.

These gross knock knock jokes bring together silly smells, slimy surprises, goofy bathroom humor, muddy messes, and harmless yuckiness.

This collection is made for readers who enjoy clean gross-out comedy without anything truly offensive.

Use these jokes for family fun, funny conversations, classroom laughs, Instagram captions, group chats, or anytime you need a quick silly joke.

From suspicious socks to mysterious smells, each section brings a different kind of goofy grossness. So open the door, prepare your nose, and get ready for a whole lot of nonsense.

Quick Answer

Gross knock knock jokes are silly door jokes built around harmless gross-out topics such as slime, mud, boogers, stinky shoes, messy food, and funny bathroom moments. People enjoy them because they are easy to remember and share. They work well for kids, family conversations, classroom fun, captions, parties, and quick laughs.

Why People Love Gross Knock Knock Jokes

Gross humor is funny because it takes ordinary things and makes them ridiculously dramatic. A smelly sock becomes a national emergency. A tiny burp becomes a concert. A little mud turns into an adventure.

Knock knock jokes add another layer because readers already know the rhythm. The setup creates a tiny mystery, and the punchline delivers the silly surprise.

These jokes are also easy to share. A short gross joke can work in a group chat, on social media, in a classroom, or during a family conversation. Kids especially enjoy harmless topics like slime, dirt, bugs, food messes, and silly smells.

The best gross knock knock jokes stay playful rather than truly disgusting. That balance keeps the humor funny, memorable, and suitable for a wide audience.

Funny Gross Knock Knock Jokes & Captions 😂

Knock knock. Who’s there? Slime. Slime who? Slime to meet you, but please wipe your shoes.
Knock knock. Who’s there? Booger. Booger who? Booger the door before you touch my snacks.
Knock knock. Who’s there? Stinky. Stinky who? Stinky socks are already inside, so you can stay outside.
Knock knock. Who’s there? Mud. Mud who? Mud I come in, or should I hose myself first?
Knock knock. Who’s there? Sludge. Sludge who? Sludge me some soap before this gets worse.
Knock knock. Who’s there? Puddle. Puddle who? Puddle you believe these shoes were once white?
Knock knock. Who’s there? Gunk. Gunk who? Gunk to the bathroom before the smell escapes.
Knock knock. Who’s there? Snot. Snot who? Snot funny until you discover it on your sleeve.
Knock knock. Who’s there? Ooze. Ooze who? Ooze dripping from my sandwich, and I still ate it.
Knock knock. Who’s there? Crumbs. Crumbs who? Crumbs are everywhere, but somehow none are in my mouth.
Knock knock. Who’s there? Stench. Stench who? Stench a terrible smell coming from those sneakers.
Knock knock. Who’s there? Gravy. Gravy who? Gravy mess than that spilled on my shirt.
Knock knock. Who’s there? Goo. Goo who? Goo away from my slime collection.
Knock knock. Who’s there? Pickle. Pickle who? Pickle me out of this sticky situation.
Knock knock. Who’s there? Smelly. Smelly who? Smelly later; I need to find the source.
Knock knock. Who’s there? Dusty. Dusty who? Dusty sock pile has officially become furniture.
Knock knock. Who’s there? Squishy. Squishy who? Squishy snack was supposed to be crunchy.
Knock knock. Who’s there? Sticky. Sticky who? Sticky fingers made the doorknob suspicious.
Knock knock. Who’s there? Drippy. Drippy who? Drippy cheese has escaped from my sandwich.
Knock knock. Who’s there? Fuzzy. Fuzzy who? Fuzzy mystery is growing inside the fridge.
Knock knock. Who’s there? Yucky. Yucky who? Yucky smell is definitely not coming from me.
Knock knock. Who’s there? Greasy. Greasy who? Greasy hands need soap before touching anything.
Knock knock. Who’s there? Sock. Sock who? Sock something over that smell before I faint.
Knock knock. Who’s there? Worm. Worm who? Worm welcome, but please leave your muddy shoes outside.
Knock knock. Who’s there? Sticky. Sticky who? Sticky note says, “Do not lick the table.”
Knock knock. Who’s there? Soggy. Soggy who? Soggy cereal has officially lost the breakfast contest.
Knock knock. Who’s there? Smear. Smear who? Smear on my face is chocolate, not evidence.
Knock knock. Who’s there? Mess. Mess who? Mess around with that slime and you’ll need a mop.
Knock knock. Who’s there? Muck. Muck who? Muck sure smells like adventure.
Knock knock. Who’s there? Funky. Funky who? Funky socks are holding a meeting in my closet.
Knock knock. Who’s there? Drip. Drip who? Drip the sauce on the plate, not my shirt.
Knock knock. Who’s there? Yuck. Yuck who? Yuck, that sandwich has developed its own personality.
Knock knock. Who’s there? Slime. Slime who? Slime is fun until it sticks to the doorbell.

Best Gross Knock Knock Jokes

Knock knock. Who’s there? Stink. Stink who? Stink I left my sneakers outside for a reason.
Knock knock. Who’s there? Grime. Grime who? Grime is winning the bathroom floor battle.
Knock knock. Who’s there? Mold. Mold who? Mold me a sandwich, but check the bread first.
Knock knock. Who’s there? Sneeze. Sneeze who? Sneeze the reason everyone moved to the other couch.
Knock knock. Who’s there? Slobber. Slobber who? Slobber is my dog’s favorite way to say hello.
Knock knock. Who’s there? Crusty. Crusty who? Crusty cereal bowl needs immediate rescue.
Knock knock. Who’s there? Fungus. Fungus who? Fungus among us, and it wants the leftover pizza.
Knock knock. Who’s there? Grease. Grease who? Grease the pan before the pancake becomes furniture.
Knock knock. Who’s there? Poo. Poo who? Poo-lease tell me that smell is from the garden.
Knock knock. Who’s there? Mucus. Mucus who? Mucus be the strangest tissue emergency ever.
Knock knock. Who’s there? Dust. Dust who? Dust a sock under the bed, pretending it owns the place.
Knock knock. Who’s there? Stain. Stain who? Stain on my shirt says lunch was successful.
Knock knock. Who’s there? Slop. Slop who? Slop carefully; the floor has suffered enough.
Knock knock. Who’s there? Blob. Blob who? Blob has escaped from the science project again.
Knock knock. Who’s there? Hairball. Hairball who? Hairball is why the cat gets no five-star review.
Knock knock. Who’s there? Dribble. Dribble who? Dribble down your chin means dinner is winning.
Knock knock. Who’s there? Bacteria. Bacteria who? Bacteria having a party on that old lunchbox.
Knock knock. Who’s there? Stale. Stale who? Stale bread is crunchy enough to be a building material.
Knock knock. Who’s there? Gassy. Gassy who? Gassy snacks were a questionable dinner choice.
Knock knock. Who’s there? Rancid. Rancid who? Rancid smell just canceled my appetite.
Knock knock. Who’s there? Splat. Splat who? Splat happened when my pancake met the ceiling.
Knock knock. Who’s there? Sticky. Sticky who? Sticky syrup has conquered the entire table.
Knock knock. Who’s there? Pungent. Pungent who? Pungent cheese just walked into the room.
Knock knock. Who’s there? Tumbleweed. Tumbleweed who? Tumbleweed rolled through the crumbs like a tiny cowboy.
Knock knock. Who’s there? Gummy. Gummy who? Gummy candy stuck to my shoe and became a sole.
Knock knock. Who’s there? Muddy. Muddy who? Muddy boots are back from their outdoor vacation.
Knock knock. Who’s there? Squelch. Squelch who? Squelch is the sound my socks make after rain.
Knock knock. Who’s there? Gooey. Gooey who? Gooey cheese stretched farther than my patience.
Knock knock. Who’s there? Smudge. Smudge who? Smudge on the window is my fingerprint masterpiece.
Knock knock. Who’s there? Pungent. Pungent who? Pungent leftovers are requesting a new refrigerator.
Knock knock. Who’s there? Noodle. Noodle who? Noodle soup on my shirt is today’s fashion statement.
Knock knock. Who’s there? Sticky. Sticky who? Sticky candy has officially adopted my pocket.
Knock knock. Who’s there? Soggy. Soggy who? Soggy socks are nature’s least comfortable slippers.

Short Gross Knock Knock Jokes

Knock knock. Who’s there? Ooze. Ooze who? Ooze that slime again?
Knock knock. Who’s there? Mud. Mud who? Mud smells funny.
Knock knock. Who’s there? Stink. Stink who? Stink escaped!
Knock knock. Who’s there? Goo. Goo who? Goo away!
Knock knock. Who’s there? Slime. Slime who? Slime time!
Knock knock. Who’s there? Snot. Snot who? Snot again!
Knock knock. Who’s there? Crumb. Crumb who? Crumb back later.
Knock knock. Who’s there? Grime. Grime who? Grime to clean.
Knock knock. Who’s there? Puddle. Puddle who? Puddle mess!
Knock knock. Who’s there? Smelly. Smelly who? Smelly socks!
Knock knock. Who’s there? Grease. Grease who? Grease the pan.
Knock knock. Who’s there? Drip. Drip who? Drip happens.
Knock knock. Who’s there? Stain. Stain who? Stain right here.
Knock knock. Who’s there? Muck. Muck who? Muck me laugh.
Knock knock. Who’s there? Soggy. Soggy who? Soggy cereal!
Knock knock. Who’s there? Blob. Blob who? Blob is back.
Knock knock. Who’s there? Sludge. Sludge who? Sludge the mop.
Knock knock. Who’s there? Yuck. Yuck who? Yuck, what’s that?
Knock knock. Who’s there? Crust. Crust who? Crust me.
Knock knock. Who’s there? Funk. Funk who? Funky socks!
Knock knock. Who’s there? Mess. Mess who? Mess everywhere.
Knock knock. Who’s there? Splat. Splat who? Splat attack!
Knock knock. Who’s there? Sticky. Sticky who? Sticky situation.
Knock knock. Who’s there? Dribble. Dribble who? Dribble dinner.
Knock knock. Who’s there? Muddy. Muddy who? Muddy shoes.
Knock knock. Who’s there? Squish. Squish who? Squish that slime.
Knock knock. Who’s there? Gravy. Gravy who? Gravy spill.
Knock knock. Who’s there? Dusty. Dusty who? Dusty socks.
Knock knock. Who’s there? Worm. Worm who? Worm welcome.
Knock knock. Who’s there? Smear. Smear who? Smear chocolate.
Knock knock. Who’s there? Gunk. Gunk who? Gunk to clean.
Knock knock. Who’s there? Fuzzy. Fuzzy who? Fuzzy leftovers.
Knock knock. Who’s there? Stale. Stale who? Stale again.

Gross Knock Knock One-Liner Jokes

Knock knock. Who’s there? Stinky socks. Stinky socks who? The only footwear that can clear a room.
Knock knock. Who’s there? Slime monster. Slime monster who? The house rules say wipe your feet and your tentacles.
Knock knock. Who’s there? Mud pie. Mud pie who? Dessert was canceled after one suspicious bite.
Knock knock. Who’s there? Booger detective. Booger detective who? I found the evidence, and it’s on your sleeve.
Knock knock. Who’s there? Greasy spoon. Greasy spoon who? The spoon has seen things no dishwasher can erase.
Knock knock. Who’s there? Soggy sock. Soggy sock who? The puddle won, and my toes surrendered.
Knock knock. Who’s there? Smelly cheese. Smelly cheese who? The snack arrived before the person carrying it.
Knock knock. Who’s there? Crumb patrol. Crumb patrol who? We protect couches from snack-related disasters.
Knock knock. Who’s there? Sticky fingers. Sticky fingers who? I touched the candy and lost my fingerprints.
Knock knock. Who’s there? Bathroom cloud. Bathroom cloud who? Somebody forgot the fan again.
Knock knock. Who’s there? Moldy mystery. Moldy mystery who? It used to be leftovers, probably.
Knock knock. Who’s there? Mud monster. Mud monster who? I stepped outside and became a creature feature.
Knock knock. Who’s there? Goo expert. Goo expert who? I specialize in removing things nobody remembers spilling.
Knock knock. Who’s there? Smell alarm. Smell alarm who? Everyone out—the refrigerator opened itself.
Knock knock. Who’s there? Pancake splat. Pancake splat who? Breakfast just landed on the wall.
Knock knock. Who’s there? Gravy disaster. Gravy disaster who? My shirt is now serving dinner.
Knock knock. Who’s there? Crust collector. Crust collector who? I save pizza edges for absolutely no reason.
Knock knock. Who’s there? Sludge scientist. Sludge scientist who? My experiment escaped before graduation.
Knock knock. Who’s there? Sock monster. Sock monster who? It ate one sock and left the stink behind.
Knock knock. Who’s there? Drippy sandwich. Drippy sandwich who? Lunch is leaking again.
Knock knock. Who’s there? Puddle jumper. Puddle jumper who? My clean pants lasted seven minutes.
Knock knock. Who’s there? Snot rocket. Snot rocket who? It launched without a countdown.
Knock knock. Who’s there? Mud artist. Mud artist who? My masterpiece is currently drying on the dog.
Knock knock. Who’s there? Grease lightning. Grease lightning who? That pan is moving faster than the sponge.
Knock knock. Who’s there? Smudge artist. Smudge artist who? I specialize in fingerprints on clean windows.
Knock knock. Who’s there? Gunk inspector. Gunk inspector who? Your keyboard has officially failed inspection.
Knock knock. Who’s there? Soggy cereal. Soggy cereal who? Breakfast waited too long to become soup.
Knock knock. Who’s there? Stain champion. Stain champion who? I wore white for exactly five minutes.
Knock knock. Who’s there? Gooey cheese. Gooey cheese who? My pizza is wearing stretchy pants.
Knock knock. Who’s there? Dust bunny. Dust bunny who? It pays rent under the sofa.
Knock knock. Who’s there? Funky lunchbox. Funky lunchbox who? It contains yesterday’s mystery.
Knock knock. Who’s there? Muddy shoes. Muddy shoes who? They tracked the outdoors into every room.
Knock knock. Who’s there? Sticky note. Sticky note who? It says, “Clean this mess tomorrow.”

Hilarious Gross Knock Knock Jokes to Make You Laugh

Knock knock. Who’s there? Pickle juice. Pickle juice who? I spilled it, and now the table smells like a sandwich.
Knock knock. Who’s there? Sock soup. Sock soup who? I dropped a sock in the wash and invented dinner.
Knock knock. Who’s there? Mud puddle. Mud puddle who? I jumped in and came out wearing camouflage.
Knock knock. Who’s there? Cheese cloud. Cheese cloud who? That snack is floating through the room by smell alone.
Knock knock. Who’s there? Slime bucket. Slime bucket who? One sneeze and the whole project becomes modern art.
Knock knock. Who’s there? Banana peel. Banana peel who? I slipped once and blamed the fruit.
Knock knock. Who’s there? Soup spill. Soup spill who? My shirt is now today’s lunch special.
Knock knock. Who’s there? Dust storm. Dust storm who? I moved the sofa and discovered a whole civilization.
Knock knock. Who’s there? Gum. Gum who? Gum stuck under the desk has better attendance than I do.
Knock knock. Who’s there? Smelly sneaker. Smelly sneaker who? That shoe needs a vacation outdoors.
Knock knock. Who’s there? Grimy window. Grimy window who? It has not seen soap since the dinosaur era.
Knock knock. Who’s there? Wet dog. Wet dog who? The carpet just became a splash zone.
Knock knock. Who’s there? Yogurt spill. Yogurt spill who? My backpack smells like a dairy farm.
Knock knock. Who’s there? Cracker crumbs. Cracker crumbs who? They followed me from the kitchen like tiny detectives.
Knock knock. Who’s there? Sticky floor. Sticky floor who? Every step comes with its own sound effect.
Knock knock. Who’s there? Mustard. Mustard who? Mustard is the reason my white shirt retired.
Knock knock. Who’s there? Gravy train. Gravy train who? It derailed across the dinner table.
Knock knock. Who’s there? Mold detective. Mold detective who? I found something growing beside the leftovers.
Knock knock. Who’s there? Mud boot. Mud boot who? I stepped outside and came back with two extra pounds.
Knock knock. Who’s there? Sloppy sandwich. Sloppy sandwich who? It requires a napkin, a towel, and courage.
Knock knock. Who’s there? Jelly fingers. Jelly fingers who? I touched the toast and became breakfast.
Knock knock. Who’s there? Stink cloud. Stink cloud who? Please open a window before it gets a roommate.
Knock knock. Who’s there? Chocolate smear. Chocolate smear who? My face says dessert happened.
Knock knock. Who’s there? Greasy plate. Greasy plate who? The soap is requesting backup.
Knock knock. Who’s there? Mud pie. Mud pie who? It looks tasty until you remember the garden.
Knock knock. Who’s there? Slippery banana. Slippery banana who? The floor has entered comedy mode.
Knock knock. Who’s there? Soup nose. Soup nose who? I sneezed and gave my napkin a promotion.
Knock knock. Who’s there? Sticky table. Sticky table who? Dinner is over, but the table disagrees.
Knock knock. Who’s there? Dust bunny. Dust bunny who? It multiplied while I was looking for the broom.
Knock knock. Who’s there? Wet sock. Wet sock who? It has officially ruined my afternoon.
Knock knock. Who’s there? Slime trail. Slime trail who? Follow it to find the missing science project.
Knock knock. Who’s there? Pizza grease. Pizza grease who? My napkin just became transparent.
Knock knock. Who’s there? Smelly lunch. Smelly lunch who? Everyone suddenly remembered an appointment outside.

Clever Gross Knock Knock Jokes & Wordplay

Knock knock. Who’s there? Odor. Odor who? Odor not believe what is hiding in that lunchbox.
Knock knock. Who’s there? Eww. Eww who? Eww can smell that from here.
Knock knock. Who’s there? Mucus. Mucus who? Mucus discuss your tissue budget.
Knock knock. Who’s there? Snotorious. Snotorious who? The most famous sneeze in the neighborhood.
Knock knock. Who’s there? Pungent. Pungent who? Pungent a little too close to that cheese.
Knock knock. Who’s there? Slimeon. Slimeon who? Slimeon says the science project is alive.
Knock knock. Who’s there? Gooeyoncé. Gooeyoncé who? All the single slime, put your hands up.
Knock knock. Who’s there? Stink Floyd. Stink Floyd who? Another sock bites the dust.
Knock knock. Who’s there? Mudonna. Mudonna who? The queen of muddy puddles has arrived.
Knock knock. Who’s there? Gravy Potter. Gravy Potter who? The sauce that must not be spilled.
Knock knock. Who’s there? Booger Marley. Booger Marley who? Don’t worry about a thing; grab a tissue.
Knock knock. Who’s there? Slobber Newton. Slobber Newton who? Gravity makes drool fall every time.
Knock knock. Who’s there? Sir Stinks-a-Lot. Sir Stinks-a-Lot who? The royal sock collection demands fresh air.
Knock knock. Who’s there? Muck Twain. Muck Twain who? The adventures of Tom Sawyer’s muddy shoes.
Knock knock. Who’s there? Crumb Holmes. Crumb Holmes who? Elementary, my dear snack detective.
Knock knock. Who’s there? Drip Van Winkle. Drip Van Winkle who? He woke up and found sauce on his shirt.
Knock knock. Who’s there? Goo Newton. Goo Newton who? Every action has an equal and sticky reaction.
Knock knock. Who’s there? Sludge Skywalker. Sludge Skywalker who? May the force be with your mop.
Knock knock. Who’s there? Mud Hatter. Mud Hatter who? We’re having a very messy tea party.
Knock knock. Who’s there? Chew Bacca. Chew Bacca who? Something smells like it came from the snack galaxy.
Knock knock. Who’s there? Captain Crumbs. Captain Crumbs who? Defending the couch from hungry snackers.
Knock knock. Who’s there? Professor Pungent. Professor Pungent who? Today’s lesson is called “Close the fridge.”
Knock knock. Who’s there? Sticky Potter. Sticky Potter who? The wand is glued to his hand.
Knock knock. Who’s there? Sir Squelch. Sir Squelch who? His wet shoes announce every entrance.
Knock knock. Who’s there? Doctor Drip. Doctor Drip who? The patient is a leaky sandwich.
Knock knock. Who’s there? Count Crustula. Count Crustula who? He only eats the crunchy edges.
Knock knock. Who’s there? Baron von Booger. Baron von Booger who? He rules the tissue kingdom.
Knock knock. Who’s there? Duke of Dirt. Duke of Dirt who? His royal robe is covered in mud.
Knock knock. Who’s there? Lord Gunkington. Lord Gunkington who? His keyboard has seen too many snacks.
Knock knock. Who’s there? Sir Slime-a-Lot. Sir Slime-a-Lot who? He leaves a trail wherever he goes.
Knock knock. Who’s there? The Grime Reaper. The Grime Reaper who? He has come for your dirty dishes.
Knock knock. Who’s there? Sherlock Smell. Sherlock Smell who? The mystery odor is coming from your backpack.
Knock knock. Who’s there? Muck Norris. Muck Norris who? His muddy boots never need permission.

Clean & Family-Friendly Gross Knock Knock Jokes

Knock knock. Who’s there? Soap. Soap who? Soap me before I touch that sticky doorknob.
Knock knock. Who’s there? Towel. Towel who? Towel you clean up that mystery spill?
Knock knock. Who’s there? Bubbles. Bubbles who? Bubbles are everywhere, and nobody knows why.
Knock knock. Who’s there? Slime. Slime who? Slime is fun when it stays in the container.
Knock knock. Who’s there? Mud. Mud who? Mud belongs outside, but my shoes disagree.
Knock knock. Who’s there? Crumbs. Crumbs who? Crumbs make every snack more adventurous.
Knock knock. Who’s there? Smell. Smell who? Smell something strange, or is it just the cheese?
Knock knock. Who’s there? Sponge. Sponge who? Sponge is ready for the biggest cleanup ever.
Knock knock. Who’s there? Soggy. Soggy who? Soggy cereal needs a faster spoon.
Knock knock. Who’s there? Sticky. Sticky who? Sticky fingers require a sink visit.
Knock knock. Who’s there? Puddle. Puddle who? Puddle jumping is fun until laundry day.
Knock knock. Who’s there? Stain. Stain who? Stain on the shirt means lunch was delicious.
Knock knock. Who’s there? Goo. Goo who? Goo is harmless until it meets the carpet.
Knock knock. Who’s there? Gravy. Gravy who? Gravy belongs on plates, not sleeves.
Knock knock. Who’s there? Dust. Dust who? Dust is just tiny dirt taking a nap.
Knock knock. Who’s there? Sock. Sock who? Sock drawer smells suspicious today.
Knock knock. Who’s there? Cheese. Cheese who? Cheese has a smell with a fan club.
Knock knock. Who’s there? Pickle. Pickle who? Pickle juice spilled again, so grab a towel.
Knock knock. Who’s there? Jelly. Jelly who? Jelly on the floor is not a new rug.
Knock knock. Who’s there? Ketchup. Ketchup who? Ketchup belongs on fries, not the ceiling.
Knock knock. Who’s there? Mustard. Mustard who? Mustard stain is today’s unexpected accessory.
Knock knock. Who’s there? Pancake. Pancake who? Pancake landed upside down and called it art.
Knock knock. Who’s there? Muffin. Muffin who? Muffin smells suspicious in the lunch bag.
Knock knock. Who’s there? Banana. Banana who? Banana peel has become the floor’s prank department.
Knock knock. Who’s there? Yogurt. Yogurt who? Yogurt spilled, and my backpack needs a bath.
Knock knock. Who’s there? Cereal. Cereal who? Cereal is supposed to be crunchy, not swampy.
Knock knock. Who’s there? Popcorn. Popcorn who? Popcorn kernels are hiding in every couch crack.
Knock knock. Who’s there? Cookie. Cookie who? Cookie crumbs are following me everywhere.
Knock knock. Who’s there? Donut. Donut who? Donut ask why there is frosting on my elbow.
Knock knock. Who’s there? Sandwich. Sandwich who? Sandwich sauce escaped before I took the first bite.
Knock knock. Who’s there? Pizza. Pizza who? Pizza grease made my napkin transparent.
Knock knock. Who’s there? Noodle. Noodle who? Noodle slipped off my fork and landed on my shirt.
Knock knock. Who’s there? Ice cream. Ice cream who? Ice cream melted faster than my plans.

Easy Gross Knock Knock Jokes for Quick Laughs

Knock knock. Who’s there? Muddy. Muddy who? Muddy shoes again!
Knock knock. Who’s there? Smelly. Smelly who? Smelly sneakers!
Knock knock. Who’s there? Gooey. Gooey who? Gooey cheese!
Knock knock. Who’s there? Snotty. Snotty who? Snotty tissue!
Knock knock. Who’s there? Crummy. Crummy who? Crummy couch!
Knock knock. Who’s there? Sticky. Sticky who? Sticky table!
Knock knock. Who’s there? Greasy. Greasy who? Greasy fingers!
Knock knock. Who’s there? Soggy. Soggy who? Soggy socks!
Knock knock. Who’s there? Sloppy. Sloppy who? Sloppy sandwich!
Knock knock. Who’s there? Dusty. Dusty who? Dusty corner!
Knock knock. Who’s there? Grimy. Grimy who? Grimy window!
Knock knock. Who’s there? Drippy. Drippy who? Drippy sauce!
Knock knock. Who’s there? Pungent. Pungent who? Pungent cheese!
Knock knock. Who’s there? Slimy. Slimy who? Slimy hands!
Knock knock. Who’s there? Mud. Mud who? Mud everywhere!
Knock knock. Who’s there? Stain. Stain who? Stain again!
Knock knock. Who’s there? Gravy. Gravy who? Gravy spill!
Knock knock. Who’s there? Sludge. Sludge who? Sludge cleanup!
Knock knock. Who’s there? Crusty. Crusty who? Crusty bowl!
Knock knock. Who’s there? Smear. Smear who? Smear on my face!
Knock knock. Who’s there? Funky. Funky who? Funky socks!
Knock knock. Who’s there? Squishy. Squishy who? Squishy banana!
Knock knock. Who’s there? Wet. Wet who? Wet shoes!
Knock knock. Who’s there? Blob. Blob who? Blob attack!
Knock knock. Who’s there? Gunky. Gunky who? Gunky keyboard!
Knock knock. Who’s there? Splat. Splat who? Splat lunch!
Knock knock. Who’s there? Mucky. Mucky who? Mucky boots!
Knock knock. Who’s there? Oozy. Oozy who? Oozy sandwich!
Knock knock. Who’s there? Fuzzy. Fuzzy who? Fuzzy leftovers!
Knock knock. Who’s there? Rancid. Rancid who? Rancid lunchbox!
Knock knock. Who’s there? Dribble. Dribble who? Dribble chin!
Knock knock. Who’s there? Grease. Grease who? Grease everywhere!
Knock knock. Who’s there? Yucky. Yucky who? Yucky smell!

Gross Knock Knock Jokes to Share With Friends

Knock knock. Who’s there? Your backpack. Your backpack who? Your backpack smells like it has secrets.
Knock knock. Who’s there? Old banana. Old banana who? I found your missing lunch, and it found me first.
Knock knock. Who’s there? Your socks. Your socks who? Your socks would like some fresh air.
Knock knock. Who’s there? Mud squad. Mud squad who? We saw your shoes and knew you needed backup.
Knock knock. Who’s there? Slime buddy. Slime buddy who? Your science project is slowly taking over.
Knock knock. Who’s there? Crumb crew. Crumb crew who? We found your snack trail across the sofa.
Knock knock. Who’s there? Mystery cheese. Mystery cheese who? Your fridge has entered detective mode.
Knock knock. Who’s there? Wet shoes. Wet shoes who? You brought the entire puddle home.
Knock knock. Who’s there? Sticky hands. Sticky hands who? Please explain why the remote is glued down.
Knock knock. Who’s there? Smelly gym bag. Smelly gym bag who? It needs its own zip code.
Knock knock. Who’s there? Sauce. Sauce who? Sauce is on your shirt, your plate, and somehow your elbow.
Knock knock. Who’s there? Mud artist. Mud artist who? Your footprints are decorating the hallway.
Knock knock. Who’s there? Sloppy eater. Sloppy eater who? Your sandwich clearly fought back.
Knock knock. Who’s there? Cheese thief. Cheese thief who? I caught you by following the smell.
Knock knock. Who’s there? Crust collector. Crust collector who? Your pizza box is becoming an archaeological site.
Knock knock. Who’s there? Soggy cereal. Soggy cereal who? Your breakfast has officially become soup.
Knock knock. Who’s there? Sticky spoon. Sticky spoon who? It refuses to leave the jelly jar.
Knock knock. Who’s there? Mud puddle. Mud puddle who? Your clean shoes lasted almost an hour.
Knock knock. Who’s there? Dust monster. Dust monster who? It lives beneath your bed rent-free.
Knock knock. Who’s there? Snack crumbs. Snack crumbs who? Your shirt is wearing a crunchy necklace.
Knock knock. Who’s there? Slime stain. Slime stain who? Your shirt has joined the science experiment.
Knock knock. Who’s there? Smell scout. Smell scout who? I found the suspicious lunchbox.
Knock knock. Who’s there? Greasy fries. Greasy fries who? Your napkin just gave up.
Knock knock. Who’s there? Gravy ghost. Gravy ghost who? It haunts every clean shirt you own.
Knock knock. Who’s there? Mud boots. Mud boots who? They brought the backyard inside.
Knock knock. Who’s there? Jelly jar. Jelly jar who? It escaped your sandwich and landed on your sleeve.
Knock knock. Who’s there? Pizza face. Pizza face who? Your lunch left evidence everywhere.
Knock knock. Who’s there? Sticky remote. Sticky remote who? Somebody ate candy during movie night.
Knock knock. Who’s there? Sneeze alarm. Sneeze alarm who? Cover your mouth before the room gets decorated.
Knock knock. Who’s there? Cookie crumbs. Cookie crumbs who? Your snack left a breadcrumb map.
Knock knock. Who’s there? Smelly shoe. Smelly shoe who? Even the dog is asking questions.
Knock knock. Who’s there? Muddy friend. Muddy friend who? You may enter after the hose gets you.
Knock knock. Who’s there? Mystery stain. Mystery stain who? Nobody knows what happened, but everyone has theories.

Funny Gross Knock Knock Jokes for Social Media 📱

Knock knock. Who’s there? Slime. Slime who? My weekend plans are sticky, messy, and somehow still fun.
Knock knock. Who’s there? Mud. Mud who? Proof that clean shoes are temporary.
Knock knock. Who’s there? Stinky socks. Stinky socks who? My laundry basket is asking for help.
Knock knock. Who’s there? Crumbs. Crumbs who? My snack left more evidence than I did.
Knock knock. Who’s there? Goo. Goo who? Goo vibes only, preferably nowhere near my carpet.
Knock knock. Who’s there? Puddle. Puddle who? Weekend forecast: 100% chance of wet shoes.
Knock knock. Who’s there? Cheese. Cheese who? This snack has a stronger personality than I do.
Knock knock. Who’s there? Sticky. Sticky who? My fingers just accepted a candy-based challenge.
Knock knock. Who’s there? Gravy. Gravy who? Dinner looked better before my shirt joined the plate.
Knock knock. Who’s there? Soggy. Soggy who? Breakfast took too long and became soup.
Knock knock. Who’s there? Muddy. Muddy who? Nature gave my shoes a makeover.
Knock knock. Who’s there? Smelly. Smelly who? My sneakers are trending for all the wrong reasons.
Knock knock. Who’s there? Sloppy. Sloppy who? Lunch was delicious; my shirt paid the price.
Knock knock. Who’s there? Dust. Dust who? I cleaned the shelf, and it immediately became dusty again.
Knock knock. Who’s there? Drippy. Drippy who? My ice cream has chosen speed over dignity.
Knock knock. Who’s there? Stain. Stain who? This shirt is now abstract art.
Knock knock. Who’s there? Jelly. Jelly who? My sandwich lost its jelly and I lost my patience.
Knock knock. Who’s there? Sauce. Sauce who? The sauce escaped and found my sleeve.
Knock knock. Who’s there? Popcorn. Popcorn who? Movie night has entered the crumb zone.
Knock knock. Who’s there? Banana. Banana who? One peel, zero graceful landings.
Knock knock. Who’s there? Pickle. Pickle who? My lunch is officially in a pickle.
Knock knock. Who’s there? Yogurt. Yogurt who? My backpack smells like a dairy mystery.
Knock knock. Who’s there? Noodle. Noodle who? Dinner landed on my shirt before I did.
Knock knock. Who’s there? Cookie. Cookie who? I ate one and somehow wore three.
Knock knock. Who’s there? Pizza. Pizza who? The grease on my fingers is part of the experience.
Knock knock. Who’s there? Muffin. Muffin who? Muffin says my lunch bag needs cleaning.
Knock knock. Who’s there? Sock. Sock who? One sock disappeared; the other smells suspicious.
Knock knock. Who’s there? Sludge. Sludge who? My science project has stopped asking permission.
Knock knock. Who’s there? Gunk. Gunk who? My keyboard has snack history.
Knock knock. Who’s there? Grime. Grime who? Cleaning day has entered the chat.
Knock knock. Who’s there? Splat. Splat who? That was my pancake attempting a wall climb.
Knock knock. Who’s there? Grease. Grease who? My fries came with complimentary fingerprints.
Knock knock. Who’s there? Mud pie. Mud pie who? The garden is serving dessert again.

More Gross Knock Knock Jokes to Keep You Laughing

Knock knock. Who’s there? Refrigerator. Refrigerator who? Something inside needs a name tag and a warning.
Knock knock. Who’s there? Old soup. Old soup who? I think this container remembers the previous school year.
Knock knock. Who’s there? Slime ball. Slime ball who? It rolled under the couch and became impossible to retrieve.
Knock knock. Who’s there? Dirty plate. Dirty plate who? The dishwasher is pretending not to hear us.
Knock knock. Who’s there? Mud puddle. Mud puddle who? It invited my shoes to stay forever.
Knock knock. Who’s there? Smelly sock. Smelly sock who? It just made the laundry basket smell nervous.
Knock knock. Who’s there? Sticky candy. Sticky candy who? It escaped my pocket and attacked my jeans.
Knock knock. Who’s there? Sneezy. Sneezy who? Sneezy met pepper, and the pepper won.
Knock knock. Who’s there? Greasy spoon. Greasy spoon who? It has seen enough pancakes for one lifetime.
Knock knock. Who’s there? Crumb storm. Crumb storm who? One cookie caused the entire sofa to crunch.
Knock knock. Who’s there? Goo puddle. Goo puddle who? It looks harmless until your shoe touches it.
Knock knock. Who’s there? Mud monster. Mud monster who? I wore white outside and created one.
Knock knock. Who’s there? Drippy taco. Drippy taco who? Dinner is escaping from both ends.
Knock knock. Who’s there? Cheese breath. Cheese breath who? I ate the snack, and now the snack speaks for me.
Knock knock. Who’s there? Wet towel. Wet towel who? It has been sitting on the floor long enough to grow a career.
Knock knock. Who’s there? Sauce stain. Sauce stain who? My shirt is now sponsored by spaghetti.
Knock knock. Who’s there? Crust. Crust who? The old pizza edge has become a kitchen fossil.
Knock knock. Who’s there? Soggy cracker. Soggy cracker who? Crunch has officially left the building.
Knock knock. Who’s there? Grimy handle. Grimy handle who? Nobody wants to touch the bathroom door first.
Knock knock. Who’s there? Slippery soap. Slippery soap who? It escaped my hand like a tiny bar of soap ninja.
Knock knock. Who’s there? Mud trail. Mud trail who? Follow it to the person pretending to be innocent.
Knock knock. Who’s there? Stale chip. Stale chip who? Crunch retired yesterday.
Knock knock. Who’s there? Sticky carpet. Sticky carpet who? It remembers every candy dropped since Tuesday.
Knock knock. Who’s there? Mystery smell. Mystery smell who? The detective has requested an open window.
Knock knock. Who’s there? Jelly blob. Jelly blob who? It escaped the jar and chose chaos.
Knock knock. Who’s there? Dust pile. Dust pile who? I moved one box and discovered another planet.
Knock knock. Who’s there? Grease spot. Grease spot who? It arrived without an invitation.
Knock knock. Who’s there? Sloppy noodles. Sloppy noodles who? Dinner is now wearing my shirt.
Knock knock. Who’s there? Wet dog. Wet dog who? The couch is about to need a towel.
Knock knock. Who’s there? Pickle smell. Pickle smell who? My lunch has announced itself.
Knock knock. Who’s there? Flour cloud. Flour cloud who? Baking started in the kitchen and ended on my eyebrows.
Knock knock. Who’s there? Chocolate drip. Chocolate drip who? Dessert has reached my elbow.
Knock knock. Who’s there? Crumb monster. Crumb monster who? It lives beneath every couch cushion.

Share-Worthy Gross Knock Knock Jokes for Every Mood 🌍

Knock knock. Who’s there? Slime. Slime who? Slime makes everything better until it meets the carpet.
Knock knock. Who’s there? Mud. Mud who? Mud makes clean shoes a temporary achievement.
Knock knock. Who’s there? Stink. Stink who? Stink happens, especially after sports practice.
Knock knock. Who’s there? Cheese. Cheese who? Cheese smells strong enough to introduce itself.
Knock knock. Who’s there? Crumbs. Crumbs who? Crumbs are tiny souvenirs from every snack.
Knock knock. Who’s there? Goo. Goo who? Goo is basically a hug from a puddle.
Knock knock. Who’s there? Soggy. Soggy who? Soggy socks are proof that puddles have excellent aim.
Knock knock. Who’s there? Sticky. Sticky who? Sticky fingers make every doorknob an adventure.
Knock knock. Who’s there? Gravy. Gravy who? Gravy can turn a clean shirt into a dinner menu.
Knock knock. Who’s there? Sludge. Sludge who? Sludge is science wearing muddy boots.
Knock knock. Who’s there? Puddle. Puddle who? Puddle jumping is fun until the socks squish.
Knock knock. Who’s there? Dust. Dust who? Dust gathers faster than excuses for not cleaning.
Knock knock. Who’s there? Stain. Stain who? Stain says lunch was worth it.
Knock knock. Who’s there? Jelly. Jelly who? Jelly escaped the sandwich and chose my sleeve.
Knock knock. Who’s there? Banana. Banana who? Banana peel says gravity is hilarious.
Knock knock. Who’s there? Pizza. Pizza who? Pizza grease leaves fingerprints with flavor.
Knock knock. Who’s there? Noodle. Noodle who? Noodle sauce always knows where the clean shirt is.
Knock knock. Who’s there? Yogurt. Yogurt who? Yogurt spilled, and the backpack needs a spa day.
Knock knock. Who’s there? Pickle. Pickle who? Pickle juice is tiny but powerful.
Knock knock. Who’s there? Muffin. Muffin who? Muffin crumbs are hiding in my pockets again.
Knock knock. Who’s there? Popcorn. Popcorn who? Popcorn has a secret plan to fill every couch crack.
Knock knock. Who’s there? Cookie. Cookie who? Cookie crumbs never travel alone.
Knock knock. Who’s there? Mustard. Mustard who? Mustard stains believe white shirts are invitations.
Knock knock. Who’s there? Ketchup. Ketchup who? Ketchup always arrives on the shirt before the napkin.
Knock knock. Who’s there? Soup. Soup who? Soup belongs in bowls, but mine prefers sleeves.
Knock knock. Who’s there? Cereal. Cereal who? Cereal becomes soup when you stop paying attention.
Knock knock. Who’s there? Ice cream. Ice cream who? Ice cream drips faster when you are wearing white.
Knock knock. Who’s there? Chocolate. Chocolate who? Chocolate leaves evidence on every face except the wrapper.
Knock knock. Who’s there? Spaghetti. Spaghetti who? Spaghetti noodles enjoy escaping at the worst moment.
Knock knock. Who’s there? Pancake. Pancake who? Pancake flipped once and landed somewhere unexpected.
Knock knock. Who’s there? Waffle. Waffle who? Waffle crumbs are the tiny confetti of breakfast.
Knock knock. Who’s there? Syrup. Syrup who? Syrup makes every table slightly more adventurous.
Knock knock. Who’s there? Donut. Donut who? Donut worry; the frosting stain can become a fashion choice.
Knock knock. Who’s there? Marshmallow. Marshmallow who? Marshmallow melted and became dessert glue.
Knock knock. Who’s there? Nacho. Nacho who? Nacho cheese? Then why is it on my shirt?

How to Create Your Own Gross Knock Knock Jokes

Creating your own gross knock knock jokes is easier than it sounds. Start with a harmless gross topic such as slime, muddy shoes, stinky socks, messy food, crumbs, bugs, or silly bathroom situations.

Next, think of an everyday problem connected to that topic. Maybe a sandwich leaks, a sock smells strange, or slime escapes from a container. Turn that situation into a simple setup.

The best jokes often use an unexpected connection. Make a tiny mess sound like a giant disaster. Give a smelly shoe a personality. Let a puddle act like it owns the sidewalk.

Keep the setup short and make the punchline easy to understand. Wordplay can help, but simple humor usually works best. You can also turn a joke into a short social media caption by keeping only the funniest idea.

Finally, read your joke aloud. Check that it makes sense, sounds natural, and does not copy another joke. Keep the grossness playful and family-friendly. A little silliness goes a long way.

Best Uses for Gross Knock Knock Jokes

Instagram: Turn short jokes into captions for funny photos, reels, stories, or silly everyday moments.
Facebook: Share a longer knock knock joke with friends and family for an easy conversation starter.
TikTok: Use the setup as a quick spoken joke or pair it with a funny reaction.
Pinterest: Create simple joke graphics featuring slime, mud, messy food, or other playful gross humor.
X: Post a short joke when you want something quick, silly, and easy for followers to understand.
Greeting cards: Add a harmless gross joke to a birthday card for someone who enjoys goofy humor.
Travel photos: Use muddy shoes, messy snacks, rainy adventures, or unusual food as inspiration for a caption.
Family chats: Send a clean gross joke when the conversation needs a little silliness.
Group chats: Pick short jokes that friends can read quickly and respond to with their own jokes.
Classroom activities: Use age-appropriate jokes to practice reading, speaking, creative writing, or simple wordplay.

Frequently Asked Questions

What are gross knock knock jokes?

Gross knock knock jokes are playful jokes built around harmless yucky topics such as slime, mud, smells, messy food, crumbs, bugs, and silly bathroom humor. They follow the familiar knock knock format while adding a goofy gross-out twist. The humor stays light, clean, and suitable for family-friendly entertainment.

Why do kids like gross knock knock jokes?

Kids often enjoy gross knock knock jokes because silly topics are easy to understand and create strong reactions. Words about mud, slime, smells, messy food, and other harmless yucky things can make ordinary situations feel funny. The predictable knock knock format also makes these jokes easy to remember and repeat.

Are gross knock knock jokes appropriate for families?

Yes, gross knock knock jokes can be family-friendly when they focus on harmless silliness instead of offensive or graphic material. Topics such as muddy shoes, stinky socks, slime, crumbs, messy meals, and funny smells work well for children, parents, classrooms, parties, and casual family conversations.

Where can I use gross knock knock jokes?

You can use gross knock knock jokes in family chats, group messages, classrooms, birthday cards, social media captions, parties, and casual conversations. Short jokes work especially well when you need a quick laugh. For younger audiences, choose simple jokes involving slime, mud, food messes, and silly smells.

How can I make a good gross knock knock joke?

Start with a familiar gross-but-harmless idea, then give it an unexpected twist. Keep the setup short, make the punchline clear, and avoid complicated references. Everyday subjects such as messy snacks, muddy shoes, sticky fingers, strange smells, and runaway slime provide plenty of material for original jokes.

Conclusion

Gross humor works best when it stays silly, simple, and harmless.

This collection of gross knock knock jokes gives you plenty of weird smells, sticky situations, muddy adventures, messy meals, and goofy surprises to share.

Pick your favorites for Instagram captions, family fun, group chats, classroom activities, or a quick laugh with friends.

If one made you laugh, share it in the comments, bookmark this page for later, and send it to someone who loves wonderfully silly humor.

And here is one final original joke to leave you smiling:

Knock knock. Who’s there? Cleanup. Cleanup who? Cleanup crew, because my slime just learned how to open doors!

Milo Carterwrites

Milo Carterwrites is the founder and humor writer behind Jokewinkly. He creates funny jokes, clever puns, and light-hearted content to make readers smile every day.

398+ Gross Knock Knock Jokes That Are Weirdly Funny and Totally Clean — 2026