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Uncle Flex (flex, or flexing;) Name given to an individual who possesses the characteristics of a sobriety challenged person known for behaving outrageously in public and committing leud and indecent acts.

The original Uncle Flex is rumoured to live in a small regional town in Victoria, Australia. It is estimated this man has consumed enough alcholic beverages to account for 15% of the worlds ocean volume. His drunken acts are well known and his audience is wide and diverse.
"Did you see that guy throwing up on the bouncers leg, what an Uncle Flex."

"What a flex, he just done a line lock burnout in front of the cops!"

"His flexing hard tonight, thats his 24th beer, what a hardcore darish"
by Tyre Iron Phil March 21, 2009
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