ichthyic Share definition Flag -of or relating to fish -a nice way of saying that a girl has a nasty ass smelling cunt "Well, Brittany, I must say, your vagina possessed a rather ichthyic aroma..." ichthyic by Matt zboi May 1, 2006 0 0 Get merch Get the ichthyic mug. Buy Now — $32.95 See more merch