Top Definition
Acronym used in modern instant messenging. Similiar to "fuck off" or "suck my cock."

GTFOMB = Get The Fuck Off My Balls
Dustin: gu3s5 wh4t d00d
Mike: what?
Dustin: i r0x0r y0u!!!11
Mike: dude, gtfomb
by sykogen420 December 18, 2005
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