An Acronym for No Reason Boner
I had a major N.R.B in Geometry.
by CJ McMastaKewlio February 09, 2009
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
A No Reason Boner, or an erection that seems to appear from no where. Lest it be in school while doing calculus, in church, or while watching a Pepsi ad. It may not have any meaning at face value, but you know some where in the dark corners of your mind you were thinking about how hot it would be if Jesus titty fucked a differential equation using Pepsi as the lube.
Bro 1: Dude I got the gnarliest NRB last period. I have no clue why I even got hard.
Bro 2: Sure..."No Reason" my ass.
by Zehn Fjire Tjie June 14, 2015
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
(pronounced "nerb") No reason boner
Dan had a huge NRB when he was in bio class while the professor was talking about meosis.
by Andy Kuy January 27, 2008
No Reason Boner:
A spontaneous erection without any mental or physical stimulation.
"Dude, just as I answered the door I was hit by the N.R.B.!" "Woah that must bave been awkward bro dude man"
by SnazzLem January 13, 2013
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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