Poinx Share definition Flag Is a slang word for (Fuck) when used in sexual terms Look at that girl with them tight ass white pants homes. Would you Poinx that? Fuck yeah, I'll Poinx that ass. Poinx by Mr. Slapavic May 13, 2009 0 0 Get merch Get the Poinx mug. Buy Now — $32.95 See more merch