When people get caught in pictures with they legs spread all open and they ain't leaving nothing to the imagination
oh girl did you see the picture of ________ last night, girl! that was cracked crab!
by AlexZanderRoxas September 8, 2010
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1. To eat some vigania.
2. To eat some butt.
3. To go R. Kelly in that ass.
4. Butt cheeks to ears
Jeremy: What you doing this weekend?

Patrick: I am gonna try to "crack some crab".
(Motions taking a butt and spreading it while licking it)

Jeremy: Are they in season?

Patrick: You can crack crab year round.

Jeremy: Lol.
by NatureBoy404 March 3, 2014
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Having a "Crab Crack" is when your ill fitting underwear rides up your arse crack, and you have to pinch them back into position using a crab pincher form with your hand.
"Hold on a second! I've got to stop walking, I have a bad case of Crab Crack!"
by PiggyFucboi October 2, 2017
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