15
Dan had a huge NRB when he was in bio class while the professor was talking about meosis.
by Andy Kuy January 27, 2008
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16
Acronym for No Reason Boner. A random boner a guy gets for no apparent reason.
Zach; Did you see Evan got an N.R.B. in school today when he was akes to solve the problem on the board.

Ray; Yeah. How embarassing.
by John Dennis Riley February 06, 2008
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17
I had a major N.R.B in Geometry.
by CJ McMastaKewlio February 09, 2009
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18
Man I was ridding down the street bye my self and all of a sudden I got an NRB
by Spencer2 July 09, 2007
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19
no reason boner!
when you get a woody, and there is no damn reason why
chris: it was prolly an NRB
me: its okay i understand
chris: it was prolly cuz u were there
me: oh fareal?!?!??!?!
by realrap October 11, 2007
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20
Not Really But Still

When one says a phrase that is almost, but not quite, entirely incorrect.
I'm on fire!!!! NRBS, it's hot in here.
by Supuhstar August 01, 2009
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21
No Reason Boner. When a stupid 12-year-old pops a chubby, and its really embarrassing for them, because no one can see the bulge cos they haven't hit puberty yet. And its really annoying when they just say NRB, like its a great joke, over and over and over again.
Stupid kid No.1: NRB
<<Stupid Kids erupt in giggles, not gut laughs cos their balls haven't dropped yet>>
Stupid Kid, like No.6: NRB.
<More annoying giggling>>
Angry Dan: SHUT THE FUCK UP YOU STUPID BALDY!
by Angry Dan May 14, 2004
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