Butt trench

A deep trench found in the butt, often climbing to the back of ones head.
"dude, I can see Jean's Butt trench from here. "
by #dildo February 10, 2017
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anal butt trench

unhygienic butt crack, butt cleavage, totally disgusting ass.
I almost puked when I saw his anal butt trench.
by dumpsterbear May 15, 2011
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