bumper balls 

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.

bumper balls are a poor substitute for having a real pair, buddy.

bumper balls by Dr. Badwrench April 6, 2008

bumper balls 

Imitation Bull's balls made of plastic or metalwhich are hung from the rear bumper of pick up truck or sport utility vehicles.

I hung some chrome bumper balls on my new F-350.

bumper balls by bumperman March 21, 2005

Bumper Balls 

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."

Bumper Balls by MarkBolo February 7, 2007

BALL BUMPER 

HAIR ONLY ON THE CHIN, SIMILAR TO A HALF GOATEE.

check out that dudes sweet ball bumper.

BALL BUMPER by gregory5579 February 13, 2012

ball bumper 

a shock absorber for a high speed cock sucker

man your ball bumper sure is thick

ball bumper by gregory5579 July 10, 2006

bumperballed 

When your vaginal area is being attacked by a man's balls durring sex.

"Ow, you just bumperballed me. Ewwwwww"

bumperballed by CoOl DaDdy PiMp MaStEr April 22, 2006

BumperBalls 

When two men are having intercourse with the same woman, one man is in the Vagina, and the other in the anus. While they are thrusting their hips, their balls hit or rub against each others.

Boy1: Bro, what happened last night?

Boy2: I don't know?

Girl1: I'll give you boys A hint, you two played BumperBalls on me all last night.

BumperBalls by OfficerChip November 21, 2011