Top Definition
Not Sure If Sarcasm. Used when you're not clever enough to know if someone is being sarcastic or not, but you're modest enough to admit it.
A: omg you're awesome. I love u 4ever <33333
B: nsis
A: ... definitely sarcasm
#sarcasm #unsure #not sure #sarcastic #stupid
von vicious vaca 29. April 2011
NSI
No Sarcasm Intended
used when you make a smart Alec remark when you dont mean to be a smart ass.
That is so sad. i think i wanna cry.

Hm. Smart Ass.

Chill man, NSI
#sarcasm #rude #love #sex #money #slang #word #day #ass #smartass #smart
von haleymadeethisss 6. Mai 2011
Not sure if serious
John: "What's Nsis?"
Bruce: Not sure if serious.
#serious #bullshit #liar #sarcasm #lol
von Not sure if serious 15. Juni 2014
NSI
No Sarcasm Intended;

When you're texting and you say something that isn't meant to be interpreted sarcastically.
Brett: Dude, I got 1st place in the race!
Bruce: Good for you!
Brett: ...
Bruce: NSI
#nsi #sarcasm #texting #typing #abbreviation
von TextingNSI 20. Juli 2013
Nsi
Naval Science Intructor
MSgt. Borland is my NSI. He knows everything.He is a Marine. He is God.
von CPO 27. November 2003
Nsi
Damn Brit.
Look at all the pos, especially Nsi.
von Fect 6. Februar 2003
No Sky In Sight - A kick as band In Port Angeles, WA, USA
NSIS is bad ass
#bad ass #sick #awsome #amazing #godly
von J3bus2010 5. Oktober 2009
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