mystery shit 

When shit comes out your ass so fast you can't decide if it's liquid or solid.

I had a terrible mystery shit today

mystery shit by Commander Epic June 19, 2011

mystery shit 

A shit that comes out so fast, you can't decide if it's liquid or solid.

I took a mystery shit last night.

mystery shit by icouldntthinkofanyothername November 13, 2011

shit mystery 

When you take the smallest shit, but you have to wipe for 30 minutes to get all the shit out.

Mark can't go to my wedding because of the shit mystery.

shit mystery by DatFag February 28, 2014