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Southern California term for an extremely high level of intoxication. Comination of plastered, shitfaced, and wasted. The irony of the word is that it would be extremely difficult to enunciate the word in question while in that condition.
Dave: yo dude how drunk are you man?
John: dude, i am plastershmaster-ass-fucked up...
Dave: oh shit he's plasterfasted for sure!
by Carlton Dance February 08, 2011
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