beasthole Share definition Flag -noun Pro.(beest-hol) 1. One who is mad fucking cool. 2. Derogatory term meaning mouth. 1. Nick is such a beasthole! 2. Go stick a peg in your beasthole! beasthole by Dr. Visconti July 3, 2005 0 0 Get merch Get the beasthole mug. Buy Now — $32.95 See more merch