NRB 

NRB. (no rae bang) karaoke in korean.

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

NRB by madcowmoo July 20, 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"

Nrb by Tookie November 13, 2005

nrb 

No reason Boner

dude I was just sittin around and i got a nrb

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.

NRB 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

NRB by Meek it’s January 19, 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

NRB by Spencer2 August 3, 2007

NRB 

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?!?!??!?!

NRB by realrap December 29, 2007