21
Acronym for no idea. Someone asks you something and you don't know you type "ni".
<someone>Anyone know how to...
<Spider>ni
by Spider February 20, 2005
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22
Ni is anything you want it to be. First popularized by Ryan, it's a rising phenomenon. Ni can be a positive, negative, or sad exclamation, or substituted for pretty much anything.

"Oh my ni!"
"You're such a nihead."
"Niiiii!!!!!"
by nilove2011 December 22, 2008
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24
NI = Not invited

A person that Butts into a conversation when he/she is not invited... thus being a NI
Person 1 "Hey how you doin?"
Person 2 "Hey man im ok so hows... stuff"
Random person "Hey guys"
Person 1&2 "Shut up u NI"
by DaRKeniNG June 01, 2005
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25
a nickname for a cutie pie. she’s so sweet and beautiful. a pure lil shawty
see that cutie over there? that’s my ni!
by whatsacrunchyroll April 03, 2018
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26
She is sexy, a bad bitch, got a bad temper, she got a bad attitude, she is quick to pop a bitch and she popular and all the boys adore her
Hey Ni You Scary

Ni:-slaps her-
by Urbanbaddyw November 17, 2018
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