look up any word, like hipster:
 
1.
NSN
NeverShoutNever!
Katie: I had so much fun with you at the NSN concert last night!
Sarah: OMG! Me too! He's the cuuuutest :) i could eat him.
by WellHello123 June 11, 2010
 
2.
nsn
Internet acronym for "Not so nice".
Luca: why do you leave the server immediately?
Luca: I was going to tell you to f*** off
Nigel: :(
Nigel: nsn
Luca: nsn?
by zkyp ;> January 17, 2008
 
3.
NSN
Need Some News
When you're bored and after checking all social sites, you still can't find anything interesting. Tends to make the person feel like a loser.
John: Dude, I'm so bored.
Bob: Yea, me too bro.
John: I really NSN

Jackie: Being home from school is pretty fun, but after a few hours, I really NSN

Jamie: Oh wow, look at her watching us.
Dawn: Yea she really NSN
by kkmj14 December 21, 2011
 
4.
An acronym for 'neither straight nor single', often used among groups of teenage girls watching groups of teenage boys. Pronounced 'nuss-nuss', and can be used as an adjective.
"That one's very fit. Pity he's a NSNS"

"He's nussy."
by Redwaluc September 02, 2006