grand canyon ass

wide ass with a deep, long crack. most likely a result of too much ass ramming
Her grand canyon ass was so big and wide, when I tried to hit it from behind, it sucked me in like a black hole
by assrammers July 24, 2008
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ass canyon

an ass crack so wide that it can be considered a canyon
Mike: yoo that chick i had last night has a real ass canyon
by cheryl lynn April 30, 2022
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