Someone who's never, ever, heard of a courtesy flush and chooses to leave a steamer just sitting in the bowl for the duration. Once they're done and gone their shitcasso is composed of different streaks and smears down the bowl for the next user to "observe and enjoy."
by Incinerator317 May 5, 2014
Get the Shitcassomug. A painter typically between the ages or 2 to 3 years old, who paints the walls or crib in their room with shit.
by Casually Cool July 8, 2017
Get the shitcassomug.