NRB

NRB stands for No Reason Boner. Obviously, it's a boner you get for no apparent reason. It can happen at any moment in time.

I was walking to the front of the classroom when ... SHIT! I got an NRB

by Some fag with no balls June 25, 2009

NRB

NRB. (no rae bang) karaoke in korean.

kim: "heyy wanna go to nrb later?"
park: "ok! lets sing super junior and dbsk ;D"

by madcowmoo July 21, 2009

Nrb

n. pronounced (nerb)
Acronym (No, Reason, Boner)
when you are sporting a wood and there aint a reason to be aroused.

(George) "Hey guys, dont look now, but I like so totaly got a Nrb right now"

(Guys) "dude, thats sick, we are in the locker room"

by Tookie November 03, 2005

nrb

No reason Boner

dude I was just sittin around and i got a nrb

by willdo 69 March 25, 2010

NRB

(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 28, 2008

NRB

A shit gang based in north london in the holloway side of north london they are known for robbing and attacking civillians

Damn I hate NRB they dickride ActiveGxng

by Meek it’s January 20, 2022

NRB

It is short for No Reason Bonner

Man I was ridding down the street bye my self and all of a sudden I got an NRB

by Spencer2 July 09, 2007