mancunny Share definition Flag Mans orifice, commonly used for poostabbing. This could be the backpussy (or ansu), or could be a post-op tranny with a for real cunzo. He/she has a gaping mancunny. mancunny by deexm July 7, 2003 0 0 Get merch Get the mancunny mug. Buy Now — $32.95 See more merch