Used when an ass is visibly fat without using yogas.
"Look at that ass Tim, she got the ney ney's on!"
by YoungGabesAlot October 6, 2013
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An American tourist woke up from a coma in Taiwan after celebrating the New Millenium party on New Years eve 2000. Where he commented to a local girl who was wearing a good-bye '99 T-shirt. " WOw you have big Nei Nei (Nine-Nines) tonight" go figure...
by Horng Wang May 11, 2006
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The goddess of being a psuedo-lesbian and looking adorable while doing it.
"Ney Ney rocks my socks."

"Dude, did you hear? Ney Ney won the lottery!"
by Hey Zeus May 10, 2005
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Basically it means Ney ney killua
Killua: Hi Gon

Gon: Ney ney killua
by Lyah_hey February 13, 2022
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