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1 definition by The Judge94(2)

 
1.
GBS
game boy system (cover-up when someone asks you what GBS means, it really means gay butt sex{see entry 6})
Guy: Cole and Dalton had GBS with Bell and Layne last night.

Girl: What does GBS mean?

Guy: Oh, it means game boy system.

Girl: Ok, just wondering.
by The Judge94(2) March 11, 2010