An idiotic acronym made up by some dumbshit named 'watchwolf49' at 'The Straight Dope Message Board'. He never defines it, and the best I can determine, it must mean "In My Extremely Idiotic Opinion".
An example can be found at URL: boards.straightdope.com/sdmb/showpost.php?p=19549688&postcount=49
Actual 'watchwolf' usage example:
"Despite their lily-white skin, we still call them Jews ... just stupid IMEIO ... just making up a difference to hate by"
The term used when the popular iPod, iPod Nano, iTouch or iPhone's reflective screens are used as makeshift mirrors, in particular quite popular on public transport.
Guy #1: "That girl's really into her music, look at how intensely she's staring at the screen."
Guy #2: "She's actually using it as an iMirror, too self-conscious to use a real mirror on public transport with guys like us watching her."
the goddess of jujutsu kaisen, such a powerful milf who’s the only one who shares the same technique with two of the most powerful people in jujutsu world, GOJO and SUKUNA. no one’s doing it like shoko ieiri and this is her world and we’re just living on it
A real nigga that's never gonna leave his day one bros and has there back till they fall & also will stay by his girl no matter what cause that's his girl....