A fork of Rural Dictionary
A bag of poop that Joe believed everyone wore.
Joe: Ok strip right down to the poop sack Peter and James Woods are silent Joe:What you dont wear a poop sack? Joe:DAMNIT BONNIE YOU LIED TO ME ABOUT THE POOP SACK!
A sack of poop that retarded people use when they cant poop correctly and make them look like their potty trained so they dont need a diaper.
Did you see Malford? Ya his poop-sack is full man
A sack or membrane enclosure of an animal containing no less than 50% poop. An exception to this definition is the digestive gland of a mussel, where the sack most definitely look like a poop sack, therefore suck gland is referred to as the poop sack for this animal in particular.
I just ate the mussel's poop sack!