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The simultaneously or sequentially produced mixture of urine and fecal matter that is typically contained in a toilet bowl prior to flushing.

Any mixture of shit and piss.

Shit and piss stewing in an enclosed space.

- Suspected Scottish etymology.
Who let the shliss stew, for Christ's sake!! Flush next time!
Oh God, this outhouse is full of shliss!
Close the door boy, I can smell your shliss from here!!
by Trent Baxter May 02, 2011
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