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A word made popular in the early 90's by the movie Wayne's World. You add "not" to the end of a sentence to make blatant the sarcasm in the sentence itself.
"What a totally amazing, excellent discovery... NOT!!!" -Wayne Campbell
by commonwealth1325 October 23, 2003
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Derived from existential confusion, meaning "hot; attractive; sexy;" etc.
"You are so not!"
by cliche August 15, 2003
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A state of being

Coined by Scott Ian of the band Anthrax then later made popular by the movie Wayne's world.
He's a GREAT singer.... NOT!
by myk4bz October 20, 2006
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Abbreviation of Nasty Old Thing. Total opposite of PYT (pretty young thing).
Dude to friend : Damned, that chick is NOT!

Friend : Totally man!

Not Chick (to herself) : Dam, these tight leggings really show my curves.
by Patricklikesophélie May 30, 2011
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Boolean logic operator that inverts a given value. Often denoted with '~' ('!' in programming languages).
(NOT a) AND (NOT a') = a
by cloudRunner March 22, 2006
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Someone that is not hot.
Also: Nottie.
Oh snap, fool, she looks so not right now!
Dammit, she's a nottie.
Good from far, far from good.
by MoonKnight March 04, 2003
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