1 definition by MotherfuckingSatan

It’s when a shit sits in a toilet bowl for too long and starts to dissolve and turn to shit water.
AJ: My fucking roommate left a shit in the bathroom this morning and I think it was clogged. I swear when I come back, it better not be there.
Isaiah: Nah, it’ll be shit water. What’s the term? Osmosis?
AJ: Assmosis
by MotherfuckingSatan August 27, 2019
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