The part with the button and flap on the front of a guy's boxers. When the button is undone, PEEKABOO! There's his penis!
Guys, when your fly is undone...WE CAN SEE YOUR PEEKABOO! =)
by Blueknightess April 11, 2005
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A person who is deceitful .... Someone you can not trust.
He/she is a peekaboo.
by soulmate June 30, 2004
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When the tip of a dick says "hey!" when it comes out from between the tits during a tit job, and she gives it a little lick
Aaushi: "Matthew can you give me a Peekaboo?! Please?!"
Matthew: "Sure thing sugar cookie!"
by Honey Nipples May 2, 2018
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when you do a girl from the back but you are in her vagina and you wip your dick out and stick it in her butt
i peekabooed this girl last night and she started to cry
by jock February 23, 2005
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FPS gamer lingo for a tactic employed by campers in which they peek around a corner then jump back repeatedly. There is most likely a peekaboo corner on most maps.
Jeff - Wow, you died quick..

Brett - Yeah, they got me around peekaboo corner.
by eatsleepobey December 18, 2009
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When a piece of shit slightly comes out while you're trying hard to shit it out but when you stop it returns into the rectum. Most of the time it happens repeatedly.
Dave: What took you so long man?
John: Sorry man I had some peekaboo shit and it just wouldn't come out
by TheBrokenBackFucker August 27, 2016
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