1 definition by MarkMan641

1
A stain on a persons underwear from shit. This normally happens to a heavyset person.

This usually happens by:

1.) Farting too hard
2.) Not wiping after a soupy shit

This can be embarrassing.
Guy 1: LOL did you see that guys shitstain when he was changing!?
Guy 2: Yeah!! It was disgusting! He must have been farting too much.
by MarkMan641 November 26, 2011
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