1 definition by TheRaptor?

Filling up with poop entirely by holding it in the body (preventing it from coming out) in a psychological sense. Describes the process through which someone becomes "full of shit". A.k.a becoming a sink for one's own poop.
Guy 1: "He's lying again about his relationships".
Guy 2: "Yea, he's sinking poopoo".
Guy 3: "At this rate he will truly become full of shit."

Soul 1: "The manager is gazing angrily and talking in a repulsive manner with the customers all the time.
Soul 2: "Regardless of her position we should do our best to stay away from poop sinkers".
Soul 3: "Too many people sink poop".
by TheRaptor? April 19, 2022
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