Top Definition
The act of pounding out a girl from behind.
I walked in the suite and he was crushing ass with that girl from the club. I gave him a high five fixed me a sandwich and left.
by Lewda February 26, 2008
1 more definition
Slang term for sexual intercourse; can also refer to anal intercourse, specifically.

Origin: Motion picture "Old School," as per Vince Vaughn's chatacter in an alternate locker room scene that was left on the cutting room floor.
" he's crushing ass at every frat mixer..."
by talking goat June 23, 2003

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