A joke made about a caller at the door. It usually ends up as a play on words.

The structure of a knock-knock joke is as follows:

Person 1: Knock-knock.

Person 2: Who's there?

Person 1: (Phrase A).

Person 2: '(Phrase A)' who?

Person 1: (Phrase A) (funny punch line).
Here is a knock-knock joke:

George: Knock-knock.

Reginald: Who's there?

George: Em.

Reginald: 'Em' who?

George: Emphysema! So you better quit smoking!
by Diggity Monkeez May 19, 2005
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A prank typically played by children where the prankster knocks on the victim's door or rings their doorbell and runs away thus leaving the victim with no one at their door.
Also the name of an indie pop band based in Waterloo, Ontario who have been together since 2004 and have released two self-produced EPs entitled Hurry! (2005) and Based on a True Story (2006). They have performed at mostly small venues around Southern Ontario and have played the University of Waterloo's Canada Day festival and the Halifax Pop Explosion. There is currently a full length LP in the works right now.
Hey, let's go play knock knock ginger on that kid's house!
by SJL1138 September 11, 2007
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A game played by 8-14 year olds whereby you knock on someone's door, run and hide. It's funnier if you pick the same house a few times and tempt fate. This term is used in Western Canada, particularly the prairies. Same game as Nicky Nicky Nine Doors (Eastern Canada), and Knock Down Ginger
Let's play knock knock ginger on the teacher's house.
by Al68 July 31, 2005
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The rapping of one's knuckles across perky breasts-a way to please yourself by drumming your hands on a girl's front. Arousal is usually expected.
Matt: "So how'd it go with Jack last night?"

Danielle: "Well, we had a bit of a knock-knock fest, and now I'm all sore. But he's in a better mood than ever!"

Matt: "Okay, then."
by Lord Blackness March 29, 2014
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The act of farting a huge gift against the door of your bathroom while your lover takes a long steamy hot sexy bath
As emma lay in her candle lit bathroom, with the essential oils and epsom steam filling the air.... she heard a loud rancid Crunk at the door....

Oh not another knock knock soak she screamed.... as the smell of smylas fart seeped under the door
by Swooshbeast November 6, 2023
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"I went to my mom's house to get eat some chicken wings and waffle fries, and i got ding-dong ding-dong knock knock knocked."

"I paid $250 on prom night and I got ding-dong ding-dong knock knock knocked. Apparently she doesn't dig the love handles or the snaggletooth
by batarange September 28, 2008
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When you knock on a random persons door then run away.
Bad kids in the neighborhood: “y’all wanna play knock knock zoom zoom

Other kids: “yeaaaaa”
by Eat.toilet.paper0002 April 26, 2020
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