To be an “Onie” means that you are part of a group that is only for men. This is because it has something to do with their no no square. People who are an “Onie” have a penis size under half an inch.
I had tried to have sex with this one guy last night, but he told me he was an Onie so I left ASAP
by Jadoni October 17, 2018
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$ony has taken micro$oft's place in issuing the new world order
by rek-cram February 1, 2011
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A man with hidden pain but yet holds himself.
Lovable,funny,weird,amazing.
“He’s such an oni

Do you like the stars oni?”
by Azu.ki January 7, 2021
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japanese word for demon or devil
that is one evil oni
by Oni-sama August 9, 2003
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A money grabby company which destroyed the Michael Jackson Fandom/fans
Hey, did you ever hear of Sony and Michael Jackson?
You mean $ony? Oh, yeah. Boi, lemme tell you how i feel about those backstabbing, stupid-
by haygor March 28, 2018
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Meaning sweet, kind caring and compassionate. She is smart, beautiful and will make an amazing friend.
I just became friends with Oni
by LikeTotes324 November 8, 2013
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Acronym for Office of Naval Intelligence, in the Halo book: The Fall of Reach. Possibly also used in the rest of the Halo series.
"Red Leader, sir. We've got something for ONI. We've spotted some kind of Covenant race." -Page 185, The Fall of Reach.
by Noob4sure November 27, 2005
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