A cute nickname you can call guys whose names start with Ni, for example ; Nico
Hi nini, how're you doing!
by Andreaa.a. May 21, 2021
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A black cat who’s is only loyal to one person their whole life. They hate everyone else and are more skiddish than a crack head on skid row. Once she gets use to being around you she can turn into one of the most loving cats/bitch.
Come here ninis!
Damn your cat is a real Ninis.
by Wifesucksmytip December 14, 2021
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someone who cannot stay just five minutes to wait for their friend
nini just fucking dipped??? she was literally here a minute ago what the hell I just got here

LMFAOO she cant even stay here for five minutes
by March 8, 2022
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a tiny bitch. usually below the height of five(5) feet. Ways to adjective-fy: mini nini, tiny nini, dinky nini, etc.
Sometimes I need a magnifying glass to identify a Nini.
by Adrigy January 21, 2021
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Gender-neutral term for aunt or uncle, the “N” coming from non-binary. How to refer to non-binary sibling of your parents, as opposed to “aunt” or “uncle”.
“Nini Zack brought some toys for the kids!”
“We should invite Nini Quinn, they’re always lovely to be with.”
by Urbankitionary January 10, 2020
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someone who is an absolute inconvenience to your misrable shit life/
Stephan: u know what even though you spent 10 dollars on this game specifically to play it with me and even though i was the one who crashed my game im gonna leave therefore you will have just wasted 10 dollars for 30 minutes of enjoyment.

Gary: Fuck you ass nini adopted ass piece of shit.
by Azwall March 31, 2022
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