pool o' stool
a confined area filled with water in which fecal matter can be stored indefinitely
Billy: "Whoa! Dude, why's the toilet all brown and green?!"
Tom: "Oh man! I forgot to flush. This stuff been decomposing there for at least three days"
Billy: "This is one cool pool o' stool"
Tom: "Oh man! I forgot to flush. This stuff been decomposing there for at least three days"
Billy: "This is one cool pool o' stool"