slack-jawed idiot

A lazy, shady character that's unconsciously incompetent.

He think's he's "the man", but everyone else sees him as being a fool.
Just look at mike! That slack-jawed idiot doesn't even have a clue!
by Robertrvw December 11, 2015
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Slack-jawed idiot

Anyone posing for a clickbait Youtube thumbnail.
by BlitzofChaos July 12, 2021
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