Top Definition
NO Reason Boner
Popular among thirteen year old boys.
I got a NORB during gym class and had to goto the nurse for her to rub ointment on it.
作者 Shamen 2003年9月02日

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Creature that runs naked through the Savanah. Comes in three different genders.
Wow, did you see that Norb run?
作者 LVS 2009年4月06日

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Robust round testicles
Hey Rod I had Father Nelson's norbs bouncing on my chin just before he hit the vinegar stroke and blew his love custard on my chest.
作者 Bing Tockley 2009年1月13日

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Abbreviation for "nice orbs", pertaining to boobs, breasts, tatas, etc. Word is most commonly used in online conversation, but is often used in everyday conversation too.
My God, that girl has some amazing norbs!
作者 estabanismoi 2014年11月30日

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short for "no reason boner", those annoying woodies that pop up for no apparent reason
Dude 1: Dude, what's that in your pants?

Dude 2: Oh sorry, it's just a stupid norb
作者 joeswam 2011年7月24日

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NORB= No Obvious Reason Boner
alrite calm down dont get a NORB
作者 alkaner 2010年1月01日

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N-no
O-operant
R-reason
B-boner
Dang it i cant get this NORB to go away!
作者 jimlustylip 2010年9月17日

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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