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No Apparent Reason Boner. When you're just sitting there taking a test or listening to a sermon in church and for some random reason, you get a raging hard-on. Hopefully you are wearing tight jeans or tighty-whities and not gym shorts.
I finished with my test early but had to wait to leave because I didn't want to jab anyone in the back of the head with my Narb as I was leaving my seat.
NARB by mDAWSONj August 16, 2007
Related Words
Yo man when i was in class I suddenly got a narb
narb by oscu is a qt November 16, 2021
No Apparent Reason Boner. A boner that appears for absolutely no reason you can think of
I was walking down the block when I got this NARB.

Dude, I just got a NARB.

OMG I Just got a NARB
NARB by Word Brett August 14, 2009
NARB- N. No Apparent Reason Boner. When a male individual becomes sexually aroused for absolutley no apparent reason, and cannot make his penis heel on command.
I was sitting in math class day dreaming when I suddenly felt a NARB growing, of course I was called to the board immediatley after the NARB took full form
NARB by Grigdanus August 7, 2006
Person 1:What does NARB mean?
Person 2:No Apparent Reason Boner.
Person 3:Are you kidding? It doesn't mean that. It means Newly Associated Runescape Bitch!
NARB by ThisIs4youJeanles February 17, 2009
literally, "no apparent reason boner";
also used to generally define an erection; a stiffy
It was unfortunate that I had a huge narb when the teacher called me to her desk.
Narb by Jack September 21, 2003