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Common acronym for the phrase "Fuck me with a chainsaw".
Person 1: I'm so busy between work and school I don't think Ill be able to make it to hang out tonight.

Person 2: Damn! Alright then. Sucks that you have that much work.

Person 1: I know... FMWACS right?
by Csw444 October 22, 2014
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