Top Definition
The frothy mixture of lube, come and fecal matter that is left over after anal sex.
"oh no! We got sanitorium all over my brand new Martha Stewart sheets!"
by Melissa October 28, 2003
After having anal sex, the fuckin mess of lube and crap that's left over
dude i just got some sanitorium all ova ma bed sheets
by Anal July 15, 2003
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