barump-a-bump-bump 

somthing one would want to do
upon spotting an especially fine
behind

i gotta barump-a-bump-bump that
bodacious badonkadonk

barump-a-bump-bump by g-string69 October 10, 2008

Mushroom Bump 

To take a moderate dose of cocaine ("bump") off the head of an erect penis ("mushroom").

Tom: Dude, you see that guys' boner?
PJ: No, Tom give up the dream
Tom: Imma go over to him and ask to give him a mushroom bump
PJ: what's a mushroom bump?
Tom: it's where you take a bump of cocaine off the head of another man's boner!
PJ: ...

Mushroom Bump by Teamosabe May 23, 2010

belly bump 

1 macho posturing; a fat man's pissing contest

2 the opening manuvures in sumo wrestling

3 the opening manuvures in a dispute between an umpire and a baseball manager before he gets ejected

Bastardized Bottomburp likes to belly bump.

belly bump by mandingoe June 8, 2004

gangster bump 

Gangster bump or gangster bumping is when your driving your car you hold the steering wheel with one hand and bump your whole upper body to the beat of the music. You must have you window open and your other arm out of the window.

Its a more extreme version of head bobbing!

Andy: "Wow is that dude trying to remove his car interior!"
Seaward: "No..he's gangster bumping!!!"

gangster bump by Weetz August 29, 2006

dat bump 

Something you say on a forum when a user "bumps" or posts in a really old thread

*new member posts in a thread from 2004*

DAT BUMP!

dat bump by gootipenis July 5, 2010

Dinosaur bump 

The small bumps on a guys taint

"Dude I accidentally cut one of my dinosaur bumps while shaving my taint last night" -K.A.L

Dinosaur bump by wizzahickon June 7, 2013

faby bump

Fake bumps commonly used by models to pose in maternity clothes and usually nowhere near the correct size.

That model's not pregnant, that's totally a faby bump.

faby bump by freddyflow November 21, 2013