noo 

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

noo by cheese monger August 23, 2005

NOO 

Exclamation commonly 'uttered' from negative cows.

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

Travis: I did

Meesh: Noo!

NOO by Travis? November 10, 2005

Noo 

Something that is worse than no, but not worse than nooo.
In other words, a middle level, even tho it can be infinite, like
Nooooooooooooooooooooo. That would be the the definition for losing an eye, cracking a rib, having a heart attack, and then the world exploding after a giant meteor hits.

You: I dropped your phone in the river.

Victim: nooooooo
Or
You: I took a dump and clogged up your toilet and then made your dog eat it, witch ended up in him vomiting all over you white carpet.
Victim: NOOOOOOOOOOOOOOOOOOO!!

Noo by Benjamoninio September 5, 2019

noo 

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);

noo by Literally Anyone February 11, 2017

noo 

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.

noo by inv January 16, 2008

NOO 

no orgasm October

are you participating NOO

whats that no orgasm October

NOO by ohpappi123 November 4, 2020

Noo 

Noo is a beautiful woman who care for you and will do anything to support you she will come to your rescue and stop any problems. If you come across a Noo you are very lucky to have her. But her bad side is she can get grumpy sometimes and get pissed easily.

Person 1: hey who’s that
Person 2: that’s noo my best friend

Noo by Kazbu June 8, 2021