1 definition by John Dennis Riley

Top Definition
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.
#nrb #noreasonboner #boner #nrboner #randomboner
by John Dennis Riley February 06, 2008
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