sink poop 

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".

sink poop by TheRaptor? April 18, 2022

poop in the sink

something that an insane person with slowly decaying mental health does

guy1: why is there poop in my sink
guy2: poop in the sink lol
guy1: why are you like this

poop in the sink by soupmaster 69 May 11, 2020

sinkpoop 

the highest level of horrible barbarism in a workplace or social environment. Derived from a workplace situation where the overnight crews pooped in the Ladies bathroom sinks.

i can't believe we got stuck working at this sinkpoop place. The support people were scooping mashed potatoes with their bare hands.

sinkpoop by El Guapocito March 31, 2009