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Something often used in anal pornography. When an object, such as a mans penis, is inserted into someone's anus, stretching it, then it being removed and the anus remaining open, meaning it's possible to see inside
See also ass cave
1) In the porn i watched, it featured an ass gape
2) Dude, i screwed my girlfriend so hard last night i made her ass gape
by ryan_991 November 01, 2007
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