Phase 6 Share definition Flag It's the last phase when there is nothing stopping you from shitting. You just need to go and go fast. Person 1: "Bitch, you prairie doggin' it?" Person 2: "Nah! I'm fuckin' phase 6in' it!" Phase 6 by A_Milli17 December 16, 2008 0 0 Get merch Get the Phase 6 mug. Buy Now — $32.95 See more merch