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Butt Smarm (but SmARm), n. Butt smarm can be produced by the actions of both male, and females alike. However, there must be at least ONE male paricipant. It is the production fluid, or anal afterbirth, of sex (position vairied) involving A. an anus, and B. a Penis. Butt smarm itself is a fluid that consists of: 1. Lubricant 2. Blood 3. Crap 4. Semen.
"That was some good log'jammin, but you got butt smarm all over my new abercrombie shirt!!!"
by Scott The Fox May 04, 2005
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