look up any word, like darude - sandstorm:
 
1.
Abreviation of Good to be back.
Used when someone says wb (Welcome back)
Chicken NaNa: brb I gotta piss.
Chicken NaNa: Back...
joseyisleet: wb
Chicken NaNa: gtbb
by Chicken NaNa October 11, 2005
 
2.
GTBB (Gay Tractor Beam Boots) - Boots that extrude male pheromones that distinctly attract only homosexual males.
man nice GTBBs
by circo March 03, 2011