Prosthetic testicles used to adorn the oversized vehicles of those who think very highly of themselves.

They aren't entertaining and they don't make you look cool.
They are contrived and make you look uneducated.
Jeff hung a pair of bumper nuts on his Tacoma.
Jeff's truck only shuttles him to and from work and the grocery store.
He did take it off-road once, and ironically his ground clearance was insufficient to prevent a rock from removing a portion of his oil pan and wrenching the faux balls of his otherwise unused trailer hitch.
by Fieldgrunt March 22, 2007
Get the bumper nuts mug.
(n). See tailgater or bumper rider. Anyone driving so dangerously close to another car's bumper that the driver in the front car cannot see the tailgating car in the rear view mirror. The driver who bumper fucks sometimes often does so and then turns off on a side street. This is called bump and dump. Bumper fuckers who tailgate, then drop back then tailgate and drop back, is a daredevil tactic known as clipping and dipping.
Hey Ron, would you slow down? I can't Janet, I got a bumper fucker in back of me!
by boggler October 29, 2005
Get the bumper fucker mug.
A Bizkit bumper is someone who likes the band 1990s/2000s Nu Metal band, Limp Bizkit.
My friend just bought a Limp Bizkit cd, he must be a Bizkit bumper
by idunnoaha May 24, 2021
Get the bizkit bumper mug.
Riding bumpers is when you follow someone in a vehicle too closely for a long period of time. Often used as an intimidation tactic or in retaliation for some real or perceived driving impoliteness.
Riding bumpers is allowed when someone cuts you off in traffic!
by Roxannaroxanna May 9, 2019
Get the riding bumpers mug.
Two or more hefty female college athletes - usually bowlers, who engage in mutual genital stimulation thereby "bumping" their biscuits together.
Those two bitches bowled a hell of a game. I'll bet they go home and bump biscuits. Or simply "Biscuit Bumpers!!!"
by T Jew February 4, 2010
Get the biscuit bumpers mug.
A slang term describing a homosexual woman,
insinuating that she humps other female's crotches.
That unusually large lady over there is a donut bumper.
by DeeBoz November 10, 2005
Get the donut bumper mug.
1 - When you rammin her and you "accidentally slip(fukkin liar)" and hit her in the sphincter with ya kong dong more then once.

2 - When you think all of a skanerdoodles slut holes are attractive and you want to cock slam as many as you can.
My hoe bag won't let me cock smash her backside dark vortex, so I keep playing bumper holes to try and push the issues.

That 500lb fat crusty cum dumpster got so many sweaty folds I am gonna play Bumper holes with as many as I can.
by Vortakai August 26, 2017
Get the Bumper Hole mug.