by gregory5579 January 23, 2012
by gregory5579 July 11, 2006
A vehicle accessory for those who lack a pair of their own, consisting of a rubber scrotum and testes dangling from the underside of their bumper, trailer hitch, rear axle, etc.
by Dr. Badwrench April 06, 2008
Imitation Bull's balls made of plastic or metalwhich are hung from the rear bumper of pick up truck or sport utility vehicles.
by bumperman March 21, 2005
Noun. A term used to describe the act of two men having double penetration sex with a woman, whereas each man has at least a 12 inch penis, and are standing. With each thrust, the men's testicles are repeatedly hitting each other, making a thumping sound. Commonly causes Sticky Bumper Balls.
Guy1: "Your mother likes bumper balls, doesn't she?"
Guy2: "How'd you know?"
Guy1: "Nick and I were not at your house to watch the dog."
Guy2: "How'd you know?"
Guy1: "Nick and I were not at your house to watch the dog."
by MarkBolo February 05, 2007