1 definition by Joey Wilaz
title used to describe a poop that slipped into the hole at the bottom of the toilet and is not visable.
Mike:Dude, I took a monster shit today. I really wish i had saw it.
Tom: Why didn't you?
Mike:Well i got up to look and i was pissed because it was an MIA.
Tom: Damn!
Tom: Why didn't you?
Mike:Well i got up to look and i was pissed because it was an MIA.
Tom: Damn!
by Joey Wilaz February 16, 2011