Having the facial characteristic of an immense bottom lip, as if a whole biscuit were packed inside the lip like tobacco; a common characteristic of the Mississippi blue gummer, and jiggaboo alike. One who possesses the jaw structure of a Chinnook Salmon. Human example : Bubba Gump (Forrest Gump)
Honey, look at the biscuit lip over there! He must lose things in there all the time!