planchet Share definition Flag A disgusting, almost un-human women or man, ugly and sloppy beyond belief. Can be compared to untouchable or erotican't "Hey dude, you see that chick over there?" "Aww fuck man, she's a fuckin' planchet she's so hane!" planchet by cogen December 31, 2007 0 0 Get merch Get the planchet mug. Buy Now — $32.95 See more merch