To grab the gential area of a female in an attempt to punish her for wrong doing.
My girlfriend was talking shit so I crab grabbed the bitch
by HONkEY252 August 12, 2004
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When you go behind a random girl, turn around, grab the back of her ankle with the inside of your scrunched up hand and squeeze.

It is meant to be a form of flirting.

In Brazil some may also lift the girls leg up and hold her off balance.
Go behind her and crab grab her, man!

Last night I broke my knee.. too much crabby grabby.
by JohnnySlicks June 14, 2012
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To aggressively pinch someone's butt cheek until it turns red
Jack thought it would be cool if he crab grabbed Jenny while she was wearing a tight skirt
by Yoyo37 June 10, 2015
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