Knock-knock KidsKnock, knock. Who’s there? Boo. Boo who?Do not cry, it is only a joke.Why it works: The joke follows the familiar knock-knock rhythm, then resolves the name as a pun.Copy jokeSave▲ 0Topics connected to this jokeCleanFunnyKidsKnock-KnockKnock-Knock Jokes for KidsPunPuns for Kids