Top Definition
verb: the act of going insane after finding out your friend screwed you over by causing you to go bankrupt, causing you to lose your car, causing you to find your favorite pet eaten by a larger predator, and causing you to find your boyfriend/girlfriend with this particular friend that screwed you over.
kyle: dude did you see abe yesterday?! he's totally okiishi now!

gorge: yea i would know, i was the one who okiishi'd him!
by coolcooldude March 21, 2009
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