Brown toilet water from diarrhea.
After Kevin left the restroom I had to go and realized Kevin made a bowl of toilet gravy. " You suck Kevin!"
Diarrhea of the consistency of a nice thick beef gravy.
After Laura eats her poblanos & beef enchiladas, she's going to make a big batch of toilet gravy.
the act of replacing the water in someones toilet tank with gravy, as a prank for them to get horrified at the sight of gravy in their toilet bowl
jon - "man sam pissed me off so i made his toilet into a gravy toilet"
sam- *horrified look on his face as gravy clumps down his toilet*