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Literally, "Fuck Y'all MuthaFuckers And Suck My Dick".

Comes straight from the film, "Fear of a Black Hat" (1994), written and directed by Rusty Cundieff.
When pissed off and frustrated with friends (or just for fun dramatic effect)- especially when online, sign off a message/email/blog entry with "FYMFASMD!"
by Jefferygn January 30, 2007
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