buttstruggler

One who loses their way inside the gastrointestinal track and must wait for the owner of aforementioned organs to defecate in order to escape.
A buttstruggler is often met with horribly unpleasant odors. A shower is usually taken after, but is not mandatory.

Aaron: Dude, Fred got stuck in my ass again yesterday. I had to have a good shit before he finally got out.
McGreggor: Haha, what a buttstruggler.
Aaron: Aye.