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a stronger emotional word than no, there is more feeling in it, u reall mean it
ugly bloke: i am going 2 mastabate 2 your picture later
girl: noo
by cheese monger July 26, 2005
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2
Exclamation commonly 'uttered' from negative cows.

Meesh: Did you just define the word 'noo' using a pun?

Travis: I did

Meesh: Noo!
by Travis? October 26, 2005
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3
Describes something which is new to the observer, but may not be new to the general population.
The article I just posted is noo, therefore it may or may not be new.
by inv January 12, 2008
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4
Used by programmers to give something a temporary name, this name won't be the final name, but it's going to be the name in the code. Could also be used in jokes, where only programmers get the joke.
(Random coding langauge);
Hero 1 "noo";
(Random coding);
(More random coding);
by Literally Anyone February 11, 2017
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