Top Definition
A tumor on one of your buttcheeks that resembles a weiner.
He showed me his buttweiner in the locker room. I told him to go get that thing checked out.
by mandyman January 31, 2009
2 more definitions
Similar to weiner butt, but more desriptive of the weiner rather than the butt.
Hey, butt weiner, thats quite the package you got there.
by VauZZ May 18, 2006
An act of outright, manly defiance characterized by quickly showing one's enemy one's butt cheeks, then quickly turning around to show the weiner.

Known to inspire fear in the hearts of most.
"Jarrod tried to steal my toilet paper so i buttweinered him."
by Petey B December 04, 2004

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