knock knock

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knock knock (plural knock knocks)

1. A knock-knock joke.
   • 1993, Leonard Kessler, Old Turtle's 90 Knock-Knocks, Jokes, and Riddles:

     (see title)

   • 1997, Sterling Publishing Company Staff, Fun with Little Giants: Little Giant Book of Knock-Knocks and Little Giant Book of Optical Illusions:

     Then here's a collection to last you a lifetime, or until you've driven your parents and friends crazy, whichever comes first. This is the biggest knock-knock treasury you'll ever find

   • 2006, Bob Phillips, Awesome Knock-Knock Jokes for Kids:

     This collection of the crazy and zany is from Bob Phillips—which means everyone who hears these comic gems will laugh hysterically and fall to the ground in awe of the most awesome knock-knocks ever invented.

knock knock

1. (colloquial, often childish) Used to introduce a knock knock joke.

   Knock knock. / Who's there? / Wendy. / Wendy who? / Wendy you want to open the door?

2. (colloquial) A phrase used in lieu of knocking on a door.

• ding dong