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No reason Boner. A hard on achieved with no apparent explanation.
I got a N.R.B. this morning at church.
I got a N.R.B. right in the middle of Schindler's List.
N.R.B. by B.O.B. April 4, 2003
1.no reason boner
2.unexplainable boner
dude i got an n.r.b. in science.
n.r.b by joe mackdonald April 22, 2006
N.R.B is an abbreviation for what is known as a "No Reason Boner".A No Reason Boner is when a male randomly "gets hard" for no apparent reason.Also see boner.
Man I have a wicked N.R.B right now.
N.R.B by rundmc March 2, 2006
Ted Mosby: Enjoy it. N.R.S. doesn't last forever.
N.R.S. by Amymeow May 29, 2013
An extremely uncommon band during the 1980's that made metal and rock songs.

Their most famous song can be found on the soundtrack for the 1986 movie The Transformers: The Movie, Instruments of Destruction.

Other songs that can be found are Love Thunder, and Forever, S.O.B and Stay Alive.
Person 1: Hey what song is this its pretty good!
Person 2: Its Love Thunder by N.R.G
Person 1: N.R.G? What the fuck is that?!
Person 2: *Facepalms*
N.R.G by JettStorm August 9, 2017