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Japanese. Literal Meaning: "Mr. Devil."
Usually used my a male as a means of describing himself as a daredevil, or as cunning, esp. with women.
Oni-san, kocchi de! {i am} Mr. Devil over here!
oni-san by Tengu April 1, 2005
Related Words
Not contacting anyone for a long period of time for no reason at all
Friend 1: Ugh my friend is oni'ing again
Friend 2: not again smh
Oni'ing by c00lmoose February 24, 2021
a pretentious douchebag who manifests his hatred for everything through narrow-minded, masturbatory, egregious definitions that are intended to be darkly humorous, but are really just sad.
that white supremacist wife beater is almost as bad as oni-unit, the exception being that oni-unit is at least semi-educated but still chooses to be a complete tool.
A cheat that actually works and is undetectable for csgo. It only cost 100 dollars a month but its all worth it
Have you seen oni.cc in csgo?
Holy, oni.cc can hit p.
oni.cc by alvinpixel123 April 27, 2021
When you think your going to extract with a backpack ful or oot and get bogilied
Oni'd by TarkovBilly July 20, 2021

oni-chan i have a dih🥀🥀🥀 

a popular song with upcoming fame with the original audio coming from an anime, used by many to disrupt a class
ex) yo have you listened to oni-chan i have a dih🥀🥀🥀?
ex) my favorite song is oni-chan i have a dih🥀🥀🥀.