N.R.B

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.
by rundmc March 02, 2006
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N.R.B

by CJ McMastaKewlio February 09, 2009
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N.R.B.

No Reason Boner, getting an erectefied penis for no specific reason.
"dude, yesterday in math class I got a huge N.R.B. out of nowhere.
by Lorenzo October 12, 2004
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N.R.B.

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.
by B.O.B. April 04, 2003
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n.r.b

1.no reason boner
2.unexplainable boner
dude i got an n.r.b. in science.
by joe mackdonald April 22, 2006
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N.R.B.

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
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N.R.B.

Guy 1: Why arent you getting up?
Guy2: I have a N.R.B.
by ImBeatenFrequently May 10, 2018
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