1 definition by Axem Ranger

Top Definition
NRB
No Reason Boner that occurs in the worst time happening by the second
GUY 1: Dude I got the biggest bonner in the whole fucking world for no reason!

GUY 2: Thats called an NRB jackass and everyone in the classroom can notice!
by Axem Ranger June 13, 2008

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