A Corey Dumfuq is a name given to someone who lacks common sense and as a result acts like an absolute bell end.

Derived from the Chavonian word 'Corey' meaning penis and the Chinese word 'Dumfuq' meaning fucking idiot.
"Ugh have you heard the shit Bader is coming out with?"
"Yeah, what a Corey Dumfuq!"
by Rj93 November 16, 2015
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