GB 

Get Bummed. Can be used to mean "It's your own fault, get over it" (Ex. Student: "The dog ate my homework!" Teacher: "GB.") or "this isn't going to be good." (Ex. I am going to totally GB on this test. I didn't study at all!)

This word was created by a wonderful teacher at SLVHS.

You didn't hear what GB means? I've already explained it twice, so just GB.

GB by ~Emily~ February 3, 2007

GB 

GB is short for ghetto booty, you know a fat ass

Damn!!! That chick has a GB!!!

GB by Doh, Tyson, Pz, JG April 9, 2005

GB 

Ghetto Booty! Thick, juicy, and in some cases gross and uncalled for. Usually sexy, but on some girls it is descusting and that is usually when this term is used so you can insult her without her knowing what your talking about.

Joel: I get out of my hummer i see GB!!
Luke: Fo Shizzle Ma Nizzle

GB by Blitzkrieg407 October 23, 2008

GB 

1. A popular pastime for students in college Computer Science classes with access to wireless internet. Although secretive, this activity often involves groups of several students at a time, only to be discussed after class. 2. Also, a tool utilized by students to keep awake during boring lectures.

1. Seems that this semester I'll have 6 hours of GB scheduled per week.
2. Man, I'd be bored stupid or asleep every class if it wasn't for GB!

GB by infidel January 12, 2005

gb 

GB (GHB or liquid extascy) a fantastic substance to f**ck on!!!!

gb by Alison Layton August 15, 2003

GB 

To Gang-bang...or...group sex.

dude me and garvin totally gb'd gladice yesterday

GB by jjjjjjjjjjjjjjjjjj July 15, 2007

GB 

Short for Green Bay.

October 31, 2004:
GB 34 WSH 7

GB by anonymous May 6, 2004