When a girl is on all fours and you can see her ass and vagina from the back.
Dude I asked that volley ball chick for nudes and she sent me a poon moon shot.

Yeah I asked her for some also but she just sent me a shot of her vag and it was beet red, like she was abusing it.
by Phil Smooth October 31, 2017
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A poon moon occurs when a woman purposefully flashes her vagina at someone. This is usually a joke, not an invitation for sex.
That little bitch thought she had me when she showed her ass, but I retaliated with a poon moon, and we both know who won that war!

The guys at work are always flashing their balls, and since I don't have them I joined in with a poon moon!
by Moltov Cocktease August 11, 2010
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pussy that is so good you think your on the moon
Yo man, that chick has some moon poon.
by asdfosfoadsfodsf September 11, 2008
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John: Fuck man, did you see that chick I banged last night, hot as fuck..
Jim: Really? She looked like she had a bit of a Moon-Poon.
by poonraiderxo August 4, 2011
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An Andrea's vagina hole that resembles a "Full Moon". Size and all.
"Dude, I boned Andrea the other night! Even after a kid, I didn't expect her to have a Full-Moon Poon like that!"
by AllThatIsWoman September 28, 2011
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