niii 

a slang term for "nice", used interchangeably with "sweet" or "cool". Usually drawn out in speech and pronounced "n iiiiiii eeeeee"

Mike: "Dude those are some niii pics you got there from your backpacking trip."

Teacher: "No homework this weekend, class."
Student: "Niiiiiiiii!"

niii by Cruel Leader March 1, 2010

Niii 

1. Often used as a narcissistic drone whilst speaking.

2. Often used while a smirk is present on the face, because a guy is with a girl
3. Often used whilst trying to argue, although the only word that comes out is "niii"
4. One "niii" can say a thousand words

"Hey look, there's Olivia and Luca"
"Niiiiiiiiiiiii. " *smirk*

Niii by DJpuzzles January 31, 2015

niii 

another shorthand way to desribe our daunting kwanza proprietors.

man did you see that niii cap that other niii...i laughed so hard i coughed up a biii...

niii by MACHEAL November 26, 2004

neko neko niii 

a sin and if you say this

theres the door by

A: NEKO NEKO NIII
B: *grabs knife*

neko neko niii by sneaky sneaker November 30, 2021

ohthats.niii_

The baddest bitch to ever grace this green earth

Ohthats.niii_ is a pimp not a simp

ohthats.niii_ by ohthats.niii_ May 31, 2021

Nice/niice/niiice 

Nice, being the origional and "correct" version of the word, is most commonly used, however, the two other spellings are perfectly acceptable, though there are differences. Niice, more intense than nice, and yet not so intense as niiice, is often used when something is funny or cool, though not as cool as something that is awesome. Niiice, being the most intense, is only to be used when something exceeds the awesomeness of nice AND niice.

That's nice/niice/niiice!

Nice/niice/niiice by rianette June 10, 2009

Niiioi 

It is the plural of no, this is what you use to say no to multiple questions

When I say niiioi I mean NIIIOI

Niiioi by Why_do_i_need_this _name November 13, 2019