A common short form for "indicators of interest", which is a phrase commonly found on forums for dating advice. Mostly describing the behaviour of women when noticing guys (at a club/bar)

- At a club, guys go after the girls who show IOI's.
When scouting a party for chicks, go after the ones who show IOIs
by Gandolf Randolf August 9, 2006
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IOY means: I Own You
Now you're under my control and IOY
by Peter Browne 2 February 19, 2008
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an acronym for the words "I'm Over It". not to be confused with the term "lol". they may look alike, but soon enough everyone will be using ioi more.
That bitch just made out with my ex! Oh whatever, ioi. He was a bad kisser anyway.
by 36scores June 21, 2011
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variation of 'lol'. true hackers use the word: ioi instead of lol. capital i's look like L's
<seicher> uh i like but sex
<pat_> ioi@u
by pat_ February 22, 2003
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a funnier and quirkier version of lol patented by Hernan in a failing effort to seem more interesting
instead of :that was such a good joke lol!

use: that was such a good joke ioi!
by DefinitelyNotHernan December 9, 2021
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Shortened form of I'm over it.
Oooh Yeeeessssss!
He is so deny. Next. Ewwww.Let me swipe left. I can't stand Tinder. IOI. NEXT!
by Jolt Estevez November 24, 2018
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