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A "good bro" is a colloquial term for someone within the anabolic/androgenic steroid community who is generally reliable and helpful.
Hey Bobby, did you see that massive dude? I bet he's a good bro too!
by brorly September 18, 2007
Someone who represent's all things good. The type of person you want to surround yourself with.
Lestat is a good bro. That's good bro material! superqt loves good bros. Radar is king of the bad bros.
by George Spellwin October 09, 2006