NS 

A pejorative acronym, usually ageist, referring to those who are 'not sound'.

If the term is used in an ageist manner, any inquisitive NS can be told that this acronym refers to 'new season'. This allows for flagrant usage of the term among 'OS' (which designates the opposite. This acronym can refer to 'Old Season', 'Old School' or 'Only Sound').

This party is full of NS.

Byrnsie seems to go in and out of being an NS.

NS by philopia August 2, 2009

NS 

acronym for no shit

Joe - He's an idiot.
You - NS, I've known forever.

NS by hizzo May 31, 2003

NS 

Seen in personal ads to mean non smoker. Can be coupled with others such as NS/ND non smoker/ no drugs.

Me, 50 years old NS/ND, or looking for chill type NS/ND.

NS by Pappion December 27, 2008

NS 

Nigga Shit! When something is very nigga like!

Damn that fry chicken was some real NS, I'm gonna need me some mo of that shit!

NS by blackaneseboy December 23, 2011

ns 

Meaning "no shit". Also often termed as no shit sherlock.

"That's not a moon! That's a..."
"NS, Admiral."

ns by microchip08 December 28, 2009

NS 

Formally called "Noob Syndrome," this disease occurs in a person who acts like an idiot online. The disease is usually active in 10 or 11 year olds who are in teen chat rooms.

(Online teen hangout, such as Habbo Hotel)

Noob: HAY BABY WANNA CYBER?!?!!!?!?!?!?!?
Bob (whispers to Bill): Damn that kid has a severe case of NS.
Bill: I know right?

NS by Simply Stefani; December 27, 2008

NS 

Acronym for Nation State or Nation States, an online political simulation game.

My NS just became a Father Knows Best State.

NS by Paul November 23, 2004