Wichman Share definition Flag A transgendered person whose diet consists of shit, penises, and shitty penises. Rick: "I saw this guy, or it could've been a girl. He was eating feces and sucking a guys wiener."Spence: "Sounds like a total Wichman to me." Wichman by Bum Nuts November 22, 2011 0 0 Get merch Get the Wichman mug. Buy Now — $32.95 See more merch