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1 definition by Gandolf Randolf

 
1.
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
por Gandolf Randolf 09 de Agosto de 2006