Flex on 'em!

"Flex on 'em!" is a phrase used by an individual to state their physical dominance over another.

Samuel: Did you just see Eddie pack the shit out of Donald?!
Daniel: Yo Eddie, "Flex on 'em!"

by Gameitech September 25, 2012

Flex'n on em'

A phrase meaning to beat someone's ass while gloating and coming up sick with it on any kind of transaction but most especially drugs.

That nigga be Flex'n on em'.

Let me get that Xbox be Flex'n on em'.

by Money M.T. April 1, 2010