1. one who sucks feces
2. term used to describe a fish who sucks debris off of surfaces as a food source.
3. a term used to describe someone who is generally unfavorable.
I put the poopsucker in my aquarium and it wasted no time to get right to sucking the shit.
Shitting Poopfuck is when a couple (or more) people shit on each other naked. It is like a cumshot, but with shit. It is very hard to find, and is best not to search on Google images