Top definition
When a man is attempting to strut his shit unfathomably hard; one's attempt at exerting the air of being macho to the parties around him in any shape or form. As when you see a guy driving a raised truck with expensive shocks and off-road tread tires, but still only drives in the suburbs.
"Dude, why was that cop who pulled us over such a fucker!?"
"Cuz there was a female cope partnered with him yo. Too busy flexing his dick in front of her."

(Man revs Harley obnoxiously loud as he drives by) "DICK FLEX!"
by TheCuttyHomie May 18, 2014
Happy St. Patties Day!