nikki 

a nikki is a type of mouth ulcer, which is so annoying, painful and frustrating that you pity it for being there. They usually occur through stress or a 'nick' in your mouth.

'look at my nikki, its a pain in the mouth!'

nikki by Tigermoth April 2, 2008

Nikki 

The most awesome girl you will ever meet. But she is notorious for stealing mens hearts and being a random psycho person who needs a straight jacket. Anyway, you'd love her!

Friend 1:Wow, Nikki is an awesome friend, I'm glad she has my back whenever.
Friend 2:Yeah?! Well, she stole my boyfriend!
Friend 1:Boo hoo for you

NIKKI:KYO KILLED THE BUDDHA COW AND SWAM IN A LAKE OF MUSTARD AND TOASTED CHEESEY STICKS, WITH HIS FAVORITE BLANKET, FOR YOU!

Nikki by Nami Itsumo December 29, 2008

nikki 

bad ass mother fucker

youre such a nikki!!
translation : You are a bad ass mother fucker
"yo nig!! dat kid ova dere is such a nikki!"
Translation : "that guy over there is a bad ass mother fucker"
"I gotta go hit up ma nikki fo some might fine dope"
Translation : I have to go get my dope from my bad ass mother fucker

nikki by Baby10112 April 24, 2009

Nikki 

(Nikki) The nicest, prettiest, best girl you'll ever meet. I you find/have one keep her. She very talented, loving and caring

Hey man I love Nikki don't you?
What the hell are you doing in my house? Who are you? And yes I do

Nikki by manz1234 November 7, 2018

Nikki 

She is one of the most special beings out there. Her untamable passion about everything, her kindness and laughs are the world. She finds each time a way to surprise you and give you just enough to keep thinking what if. The Nikki is a species that loves attention but gives the same amount back. The love surrounding her is a thing to behold.

A Nikki a day keeps the butterflies in your belly.

Nikki by 8vixiv8 November 26, 2021

Nikki 

On the Rosetta Stone, the definition of "Nikki" is moyai that wears too much hot pink lipstick and isn't touchy.

You look like a Nikki.

Nikki by themoyaiman October 22, 2022

Nikki 

Literally one of the most amazing people ever she loves to make fun of her best friends with her best friends! She’s iconic she’s literally Lana del Rey vinyl! We love Nikki!

She so Nikki she’s Lana delrey vinyl

Nikki by Pollypockets6969 July 7, 2023