at first glance, she may seem like an innocent child with a wacky fashion style (marvel pants tho), but she indeed has the dirtiest humor of all, involving R-rated jokes, commentaries, and discussions. she is the most forward person you will meet, with a boatload of immaturity hidden inside her. any time you encounter her, i suggest you fear for your own innocence because she will ruin it : 0.
girl 1: omg nini, did you really make a song about butts?!?!
girl 2: that girl over there just randomly broke out into a dance sequence. she is such a nini.
by nunu hehe September 25, 2020
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A Nini is a young ass grandma who doesn’t even have biological kids old enough to make her a grandma but her step kids are older and amazing beings that they have her the title of Nini, noting that “you’re way to old to be a grandma or nana but special enough to have a name like Nini
My Nini spoils me and let’s me get away with anything my mom won’t!
by Toria July 7, 2020
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NINI is a nickname used for a person who's sweet cute and just perfect she's Perfect to a level that you might fall in love with her she has nice long hair and she's sooo smart you'll be fascinating by each ans every thing about her she's the the peak of human evolution + she's sooo Caring you just can't believe she's real also uses sarcasm sooo well and she's just perfect girlfriend material and she's so responsible you retarded piece of shit would admire her nini is what you truly call a queen
Follow nini SUPREMACY or you're missing out
by PoTeNTiaL PlaYeR February 8, 2021
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nini means goodnight. it’s a more sweet and caring way of saying goodnight, usually to someone you love you care about!

goodnight —> night night —> nini
ah i’m feeling tired. prob gonna gts. nini
by koikkuma March 12, 2022
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she’s really cool
oh yea her name is nini
by memmm April 20, 2019
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the pressiest most hottest girl
Nini is the the niniest girl
by fnsdfr June 8, 2003
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