Leaf This House

Listen here, you’re probably the type of person who has to be told when the milk expires. You just got bamboozled by a classic knock-knock joke with a pun. The joke plays on the similar sound of "leaf" and "leave". When the person says "Leaf who?" they are expecting a name, but instead, you use "leaf" as the beginning of the phrase, "Leave this house!" It's a play on words that's as old as time, and you fell for it, lol.