Knock, knock. Who's there? Cow. Cow who? Cow-star comedian with these jokes!

Knock, knock. Who's there? Boo. Boo who? A boo-tiful punchline coming your way!

Knock, knock. Who's there? Lettuce. Lettuce who? Lettuce enjoy the humor together!

Knock, knock. Who's there? Cow. Cow who? Cow-abunga dude, these jokes are rad!

Knock, knock. Who's there? Lettuce. Lettuce who? Lettuce share a laugh!

Knock, knock. Who's there? Cow. Cow who? Cow-ncentrating on making you laugh!

Knock, knock. Who's there? Olive. Olive who? Olive the jokes are making my day!

Knock, knock. Who's there? Boo. Boo who? Boo-lieve me, these jokes are good!

Knock, knock. Who's there? Lettuce. Lettuce who? Lettuce have a good laugh together!

Knock, knock. Who's there? Cow. Cow who? Cow-mpelling humor right here!

Knock, knock. Who's there? Olive. Olive who? Olive these jokes are so funny!

Knock, knock. Who's there? Boo. Boo who? Don't boo, just laugh!

Knock, knock. Who's there? Lettuce. Lettuce who? Lettuce join in on the fun!

Knock, knock. Who's there? Boo. Boo who? Boo who, stop crying over spilled milk!

Knock, knock. Who's there? Harry. Harry who? Harry on time, as always!

Knock, knock. Who's there? Peas. Peas who? Peas give me another chance to make you laugh!

Knock, knock. Who's there? Howl. Howl who? Howl you know if you don't let me in?

Knock, knock. Who's there? Thistle. Thistle who? Thistle have to wait for my best punchline!

Knock, knock. Who's there? Doughnut. Doughnut who? Doughnut forget your sense of humor!

Knock, knock. Who's there? King Tut. King Tut who? King Tut-key fried chicken!

Knock, knock. Who's there? Atomic. Atomic who? Atomic sure you'll laugh at this one!