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1.
Verb. To be Mustaine'd is to travel a great distance with a group of people, and once arriving at the destination point, to be sent immediately back--usually because you're being fired for being an incompetent ass.

This is named for Dave Mustaine who, as a member of Metallica, traveled with them from California to NYC. The band sent him packing the next day.
Alison: Did you see Project Runway last night?
Kora: When they got to go to Paris, and then Angela got Mustaine'd cause of the crappy dress? Awesome show.
Alison: Carry on!
by oso31 August 31, 2006
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