Knock knock jokes are a staple of simple humor. They are short, playful, and often painfully predictable. While some can be clever, others are so bad that they make you laugh despite yourself. That’s the charm of the worst knock knock jokes—you know they’re silly, you roll your eyes, and yet you can’t resist smiling.

In this article, we’ve gathered 35 of the worst knock knock jokes ever told. They’re not clever masterpieces of comedy, but they are funny in their own cringeworthy way. Perfect for sharing with friends, kids, or even in awkward moments when you just need to break the ice.

Why Bad Knock Knock Jokes Are Still Funny

Humor doesn’t always have to be sophisticated. Sometimes the simplest wordplay, even when painfully obvious, is enough to spark laughter. Bad knock knock jokes are funny because:

They rely on repetition and rhythm.

The punchlines are often groan-worthy, making them oddly satisfying.

They’re accessible—kids and adults alike can enjoy them.

They create shared laughter, even if it’s laughter at how bad they are.

The worst knock knock jokes remind us that laughter doesn’t have to be complicated. It can come from the simplest setup and silliest wordplay.

The Infamous 35 Knock Knock Jokes

Here they are—the groaners, the eye-rollers, the absolute worst knock knock jokes ever that are so bad, they’re actually funny.

Classic Cringe Jokes

Knock, knock.
Who’s there?
Boo.
Boo who?
Don’t cry, it’s just a joke.

Knock, knock.
Who’s there?
Cow says.
Cow says who?
Cow says mooooo.

Knock, knock.
Who’s there?
Lettuce.
Lettuce who?
Lettuce in, it’s cold out here!

Knock, knock.
Who’s there?
Atch.
Atch who?
Bless you!

Knock, knock.
Who’s there?
Tank.
Tank who?
You’re welcome.

Food-Themed Groaners

Knock, knock.
Who’s there?
Olive.
Olive who?
Olive you and I miss you.

Knock, knock.
Who’s there?
Orange.
Orange who?
Orange you going to open the door?

Knock, knock.
Who’s there?
Doughnut.
Doughnut who?
Doughnut forget to laugh at this one.

Knock, knock.
Who’s there?
Butter.
Butter who?
Butter open the door before I melt!

Knock, knock.
Who’s there?
Peas.
Peas who?
Peas open the door, it’s freezing!

Silly and Predictable Ones

Knock, knock.
Who’s there?
Broken pencil.
Broken pencil who?
Never mind, it’s pointless.

Knock, knock.
Who’s there?
Harry.
Harry who?
Harry up, it’s cold out here!

Knock, knock.
Who’s there?
Dishes.
Dishes who?
Dishes the police, open up!

Knock, knock.
Who’s there?
Canoe.
Canoe who?
Canoe come out and play?

Knock, knock.
Who’s there?
Nobel.
Nobel who?
No bell, that’s why I’m knocking!

Animal-Inspired Jokes

Knock, knock.
Who’s there?
Alpaca.
Alpaca who?
Alpaca the suitcase, let’s go!

Knock, knock.
Who’s there?
Owl.
Owl who?
Owl be seeing you later.

Knock, knock.
Who’s there?
Duck.
Duck who?
Duck-tape your mouth and stop the bad jokes.

Knock, knock.
Who’s there?
Giraffe.
Giraffe who?
Giraffe me crazy with these jokes.

Knock, knock.
Who’s there?
Cows go.
Cows go who?
No, silly. Cows go moo!

Weird and Absurd

Knock, knock.
Who’s there?
Boo boo.
Boo boo who?
Make up your mind—boo or woo?

Knock, knock.
Who’s there?
Interrupting cow.
Interrupting cow wh—
MOO!

Knock, knock.
Who’s there?
Ice cream.
Ice cream who?
Ice cream every time I see bad jokes.

Knock, knock.
Who’s there?
Little old lady.
Little old lady who?
Wow, I didn’t know you could yodel!

Knock, knock.
Who’s there?
Booze.
Booze who?
Booze better be for the adults only.

Short and Silly

Knock, knock.
Who’s there?
Europe.
Europe who?
No, YOU’RE a poo.

Knock, knock.
Who’s there?
Wooden shoe.
Wooden shoe who?
Wooden shoe like to hear another joke?

Knock, knock.
Who’s there?
Tank.
Tank who?
You’re welcome! (Yes, again.)

Knock, knock.
Who’s there?
Banana.
Banana who?
Knock, knock.
Who’s there?
Orange.
Orange who?
Orange you glad I didn’t say banana again?

Knock, knock.
Who’s there?
Ice.
Ice who?
Ice to meet you!

The Truly Terrible Ones

Knock, knock.
Who’s there?
Boo hoo hoo hoo hoo.
Boo hoo who?
Okay, you’re crying too much now.

Knock, knock.
Who’s there?
Amish.
Amish who?
Really? You don’t know who you are?

Knock, knock.
Who’s there?
Justin.
Justin who?
Justin time for another bad joke.

Knock, knock.
Who’s there?
Control freak.
Con—
Okay, now YOU say, “Control freak who?”

Knock, knock.
Who’s there?
Howard.
Howard who?
Howard you like to hear 35 of the worst knock knock jokes in one sitting?

Why We Can’t Resist Bad Jokes

Even though these knock knock jokes are groan-worthy, they still serve their purpose: making people laugh, or at least smile. They’re easy to remember, perfect for kids, and light enough to fit into any social situation.

The worst knock knock jokes remind us not to take humor too seriously. Sometimes, laughter comes from the silly, the obvious, or even the painfully bad. And that’s okay.

So next time you need to lighten the mood, pick one of these 35 terrible jokes. Chances are, the reaction will be a mix of groans, chuckles, and someone saying, “That was so bad… but actually funny.”