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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
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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
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