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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"
by Cheshire Human May 28, 2017
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