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
بواسطة vicious vaca إبريل/نَيْسان 29, 2011

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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
بواسطة haleymadeethisss مايو/أيار 6, 2011

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Not sure if serious
John: "What's Nsis?"
Bruce: Not sure if serious.
بواسطة Not sure if serious يونيو/حَزيران 15, 2014

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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
بواسطة TextingNSI يوليو/تمُّوز 20, 2013

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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Nsi
Naval Science Intructor
MSgt. Borland is my NSI. He knows everything.He is a Marine. He is God.
بواسطة CPO نوفمبر/تشرين الثّاني 27, 2003

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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Nsi
Damn Brit.
Look at all the pos, especially Nsi.
بواسطة Fect فبراير/شباط 6, 2003

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The Urban Dictionary Mug

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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No Sky In Sight - A kick as band In Port Angeles, WA, USA
NSIS is bad ass
بواسطة J3bus2010 أكتوبر/تشرين الأوّل 5, 2009

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt
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