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1.
grb
One of the major gangs in Brisbane. And now the gang violence has reached brisbane. The gang began to live in 2005. First it started off with 3 people and now it has more than 120 members. The gang was involved in many robberies all over the south side of brisbane. The gang seems to be semi violent, but is gettin worse. The gang has developed many of its own rituals and gang signs in past 2 years.
Guy 1: Man what happend to my store its empty, and they killed my dog. Look its hanging from the fan. Oh god.
Guy 2: G'yea, looks like grb has been here.
by GRB-Thugsta May 10, 2007
 
2.
GRB
GRB is a large gang that is growing fast in brisbanes south side, they've been around my neighbor hood a lot of times it seems they own nearly everywhere, i go to the corner store theres 3 of them there, i go to get a video theres 2 in side, i go in kfc theres 6 in there, everyday there seems to be more and more of them, they usually wear green and white and are extremely dangerous ive been threatened by them a few times so ive learnt to stay out of their way and stay in at night. ive heard some of them talking about the "veteranos" called alex, calum and gescshke. ive heard a few nick names for them but i dont know who fits each one
Guy 1: This place smells like spray paint
Guy 2: yeah theres grb's tag over there in green and white, shit they're coming over here now lets hide!
by Adrian4103 June 13, 2007
 
3.
GRB
Unlike an NRB, a GRB has a reason, and it's a good one.
"Did you see that fly huney just walk past."
"Yeah brah, I'm still trying to conceal my GRB."
by BrassWtrBthWash July 01, 2009
 
4.
gonna rape u bitch! A common string of text sent to a friend. A term of endearment. All that ish.
Hi Joyce, I am grb!

Can I come over? NO?! I am grb! jk, kinda.
by DrunkdialingMofo May 07, 2006
 
5.
GRB
Good reason boner, that is when you get a boner and there is a damn good reason for it, and you sholdn't be ashamed when you get one unless your name is chris perez.
man i got the biggest grb last night when i seen that girl at the mall, she was hot.
by t_w_i_N_K_L_E October 25, 2006
 
6.
GRB
Good Reason Boner, thats when you get a boner and there is a damn good reason for it.
Man I got the biggest GRB last night after seeing that girl at the mall.
by t_w_i_N_K_L_E October 24, 2006