Knock Knock Lettuce

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

Knock Knock Jokes

Thistle
Started strippin
Knock Knock York
Knock Knock Walrus
Knock Knock waiter
Knock Knock orange
Knock Knock Opportunity
Knock Knock Olive
Knock Knock Nicholas
Knock Knock Mister
Knock Knock midget
Knock Knock Mahatma
Knock Knock madam
Knock Knock little old lady
Knock Knock Lettuce
Knock Knock Justin
Knock Knock Ivor
Knock Knock Isabel
Harry Butch and Jimmy
Knock Knock Harry
Knock Knock Grandma
Knock Knock Freeda
Knock Knock Fanny
Knock Knock Europe
Knock Knock Doris
Knock Knock boo
Knock Knock Big ish
Knock Knock Atch
Knock Knock Ammonia
Knock Knock Amanda
Jose
Dwane
Boo
Dwayne
Luck
Oddley
Alex
Knock Knock Opportunity