Knock-knock KidsKnock knock. Who is there? Lettuce. Lettuce who?Lettuce in, it is snack time!Why it works: “Lettuce” sounds like “let us.”Copy jokeSave▲ 0Topics connected to this joke5-Year-OldsCleanFoodFood Jokes for KidsFood PunsFood Puns for KidsFunnyKidsPunPuns for Kids