by Spencer2 August 3, 2007

I'm on fire!!!! NRBS, it's hot in here.
by Supuhstar August 1, 2009

chris: it was prolly an NRB
me: its okay i understand
chris: it was prolly cuz u were there
me: oh fareal?!?!??!?!
me: its okay i understand
chris: it was prolly cuz u were there
me: oh fareal?!?!??!?!
by realrap December 29, 2007

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

by ben parry June 25, 2007

(No reason boner) This occurs when you get a hard on out of nowhere. You may be sitting in class or hanging with your friends and BAM you have a huge hardon out of nowhere, and then your friend call you gay and leave you. A good way to get rid of these is think about something gross, like your grandma butt ass naked.
John: Hey hows it going man?
Jake: I got a huge ass NRB in class and ot was so embarrasing
John: Haha sucks to be you
Jake: I got a huge ass NRB in class and ot was so embarrasing
John: Haha sucks to be you
by TMan69 April 27, 2017
