an acronym that stands for a "No-Apparent-Reason-Boner", often occuring among middle-schoolers and sometimes high-schoolers.
the N.
A.R.B. can be
hidden if one knows the proper techniques
Dude i got a wicked
narb in english class today.
My
sweat pants are revealing my enormous
NARB.
The word
Narb means no apparent reason boner. I had such a huge throbbing narb today!