look up any word, like blumpkin:
 
64.
AN ASS THAT IS SO LARGE THAT THE SHEER MASS OF IT CREEPS UP ONES BACK BECAUSE THERE IS NO MORE ROOM FOR IT TO EXPAND.
DAMN! LOOK AT THAT GIRL R.M. SHE GOT A SERIOUS BASS BEHIND HER!
by ERNIENBERT August 14, 2008
 
65.
Short for bad ass.

Meaning "super cool" or "hardcore" or however else you want to use it.

Pronounced like the fish.
You're dyeing your hair again? Bass.
by Zakiue December 16, 2007
 
66.
"She's got a bass"
Pronounced "b" + "ass". Derived from the compounding of the words "back" and "ass".

A "bass" in this sense is the term to say that you can't tell where someone's back ends and ass begins. This can be caused by having a 1) a flat ass, 2) lower back fat that makes it hard to tell where the back stops and the ass begins. 3) both

Antonym: J-Lo booty.
She's a hot girl, but she's got such a bass on her, that i'll probably never take her from behind.
by J-Y December 04, 2007
 
67.
The spot on your body between your back and your ass.

Randi: *trys to smack my ass but hits my bass"
Me: FUCKIN A! YOU HIT MY BASS NIKKUH!
by Third_Eye June 11, 2008
 
68.
when a large person wears a short skirt without panties and bends over, her bass (bottom ass). as opposed to regular crack which comes out of the top of the clothing, bass rears its ugly head underneath the clothing
people of walmart has alot of bass action
by chalkjockey December 05, 2009
 
69.
Another term equivalant to cool, tight, sweet, awesome, etc etc. Almost exclusively used as an adjective. Originated within garage bands from Ohio and spread from there.

It is pronounced like the instrument, not the fish. Pronouncing it in the latter sense is a source of ridicule.
1. That new song by Jill Sobule is pretty bass.
by Spaztic November 15, 2005
 
70.
The fine art of shoving ones testciles into an anus. Balls in the ass my friends, balls in the ass.

Comes in the single and double variety.
That chick has a sweet cornhole... I'd love to bass that bitch!
by Beepo July 12, 2006