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That chick who always acts as if she is your mother. She will reprimand you at any given time, though usually for acceptable reasons. Nikki's are dream crushers, especially when those dreams involve betta fish and/or rolling chair races. She is also a bad person. A Nikki's soul-mate most definitely is named Scott.
Boy: Let's get a Betta fish!

Boy: Man youre a nikki
Girl: I love Scott

Boy 1: Let's race rolling chairs
Boy 2: Ok Dude
Boy 1: Dude she is such a nikki.
by CD THE GOD October 02, 2013
169 29
an old lady/man who wears leotards and comments on facebook status
got a notifaction . oh dear lord its the nikki again
by youraleotard November 24, 2011
155 45
A word to describe a whale-like person. One who is fat. One who eats a lot of food. Or a person who steals other people's food as well.
That girl is such a Nikki! See how much she eats?!
by BEY2513 July 25, 2011
178 73
A try hard ugly bitch, that is only interested in men that have girlfriends or partners and then gets pregnant to them. a real homewrecking whore!
That bitch just stole my Boyfriend! Wow she must be pulling a Nikki!
by wingdawongnumba October 01, 2011
176 72
A selfish bitch that fucks everybody she meets
Jason "dude me and Nikki have been together for 2 months"
Zac "me and Nikki have been fucking for a month now"
Jason "..."
by babygurl96 January 14, 2012
131 50
A Nikki will claim to love you but will take credit for every good thing you have done. A Nikki will also claim that she is always right and never wrong. A Nikki will also leave you high and dry with her own flesh and blood because she is "stressed" and yet claim to have been loyal, and expect forgiveness when she forgives no one.
"She left you with her kid for how long? Damn, you got Nikki'ied on that one."
by Left96 March 02, 2010
185 158
The most perfect person youll ever met. Can make you feel loved in an instant, and broken in a day. The one person you go to for help, and no matter what shes feeling she will help. Summary, the most loveable caring person you will ever met. And the sexiest.
That girl, Nikki, Is amazing.
by floorlicker September 14, 2010
330 347