gack in the crack
The sticky mess that comes out of a man's butt when he has a hairy butt, a wet poop, and then uses cheap toilet paper like it's his last meal.
My cousin's gack in the crack is so bad, the toilet paper turned into a mess.
I walked into the room and saw my uncle's gack in the crack on the floor like it was a crime scene.
My brother's gack in the crack is so sticky, it's like he glued his butt to the chair.