prawn butt

When your anus gets a engorged hemorrhoid poking past the sphincter that looks like a prawn (an aquatic decapod crustacean similar to a shrimp) from forced anal sex in prison.

"Damn, I got prawn butt after being raped in prison, yo." Rudy

chummin' some butt prawns

a term first used in the mobile game kitty letter, it is a term used to describe doing a job with the wrong tools.

a: "yo i drilled a hole in my wall, but i didn't have a drill. i used a spoon."
b: "you be chummin' some butt prawns."