(1) When you call someone (name) ninis, that means you are saying they are cute and sweet.
Suga ninis is my bias from BTS, he is so cute, but so savage. 💜
by Uban Dictonary April 18, 2019
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1 shows great optimism and willing to learn
2 a common sense approach to living and, like kids
3 a risk taker
1 My friend is so nini, he is so open to learn about my point of view.
2 One who is nini will live a great life of freedom
3 I am nini, this is why I am so successful in life
by niniclothing March 14, 2021
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a peculiar sexual phrase said when a male or female climaxes, it can be used as a noun or as an adjective.

nini nation refers to having multiple sex partners at the same time
"Last night we fucked so much I could barely scream nini anymore."

"The sex was straight up nini."

"I did three guys last night, at the same time. I am now a citizen of nini nation."
by Big Nini June 28, 2010
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damn, those ninis are smaller than my fist!
by Mattwick December 15, 2004
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to get cock slapped in the face by another man or to a girl
I'll nini you!
by VladimirRxMakarov May 1, 2011
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A person who acts with utmost unintelligence or without thinking logically.

Synonyms: Idiot, retard.
That guy is a nini.
That was a nini-mistake.
by bigboyshibby November 8, 2010
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