yace phace Share definition Flag a cocaine addict; a person whom uses cocaine to give him/herself an unnatural high on a regular basis man 1: "yo jimmy just snorted yayo" man 2: "word dude hes a mad big yace phace" yace phace by Gtizzzy August 27, 2006 0 0 Get merch Get the yace phace mug. Buy Now — $32.95 See more merch