CowTail Share definition Flag when you're masterbating and all of a sudden you have explosive diarrhea. Hence the mixture of the brown and white colors of the Cowtail Candy. I was spanking it to a picture of your sister last night and totally got CowTail. CowTail by Joe Tulsey March 13, 2010 0 0 Get merch Get the CowTail mug. Buy Now — $32.95 See more merch