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Used to described a point of inebriation so far beyond your contol that you cant possibly remember what happened to you last night.

Combines the words shitty, fuckin, n wasted.
Jo: Dude i cant believe you tried motor boating my dad last night.

Jim: Well dude i was pretty shfwasted. also your dads hot.
by Apesauce420 April 16, 2009
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