Top Definition
A tricked out truck. Although on first glance the butt truck might look like a stunt to attract the ladies, it is a form of peacocking designed to score male ass. Indeed, the driver of such a monstrosity often is not yet aware of his extravagant homosexuality.
Man No. 1: Yo, check out the ground effects on that butt truck. I want to do that guy now.

Man No. 2: (Hysterical laughter.)
by OnceElfJab March 19, 2008

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