Acting as if you are rich, when in fact, your not. Spending money that you know you cant afford. similar to frontin or being nigga rich. Like when someone tries to Flex their muscles to look buffer than they are.
Person A:"Man you see that Nigga? He got one pair of Jordans and he thinks he's the shit."
Person B: "Yeah that nigga needs to quit Flex Flossin"
Person B: "Yeah that nigga needs to quit Flex Flossin"
by Kai Weezy May 18, 2010