cari istilah yang lo mau, kaya' ratchet:
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
dari vicious vaca Jum'at, 29 April 2011
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
dari haleymadeethisss Jum'at, 06 Mei 2011
Naval Science Intructor
MSgt. Borland is my NSI. He knows everything.He is a Marine. He is God.
dari CPO Kamis, 27 November 2003
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
dari TextingNSI Sabtu, 20 Juli 2013
Not sure if serious
John: "What's Nsis?"
Bruce: Not sure if serious.
dari Not sure if serious Minggu, 15 Juni 2014
Abbreviation of "Not Sure If Serious"
Mohammed: Cheryl Cole aint even that hot you know
Brandon Nyathi: What? NSIS
dari NYATHI09 Senin, 14 Februari 2011
Damn Brit.
Look at all the pos, especially Nsi.
dari Fect Kamis, 06 Februari 2003