a male/female that is an undisputed champion at attracting the opposite sex
k-dawg is a Flex Master when it comes to chopping them fine young ladies!
by key August 24, 2003
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A nice pimp, treating the opposite sex with respect.
that key dawg always runs mad game, he's like a flex master
by kyle August 25, 2003
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The supreme ruler in the art of the flake- frequently commits to attendance of an event or activity, but disappears without a trace as soon as you ask where they are.
Person 1: Where's Gonzo man? He said he was coming.

2: you mean flake master flex? He's not coming lol.
by Timothy Flinsmass February 11, 2018
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Someone who can intensly flex their dong masterfully.
Hey Zakk your a Dong Master Flex, that thing is redic!
by DongMasterFlex December 22, 2008
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