Top Definition
phrase used to express one's exasperation. Commonly uttered during intense bouts of Super Smash Bros Melee after a night of intense partying. Also used when an inability to express one's self arises.
*Ron is playing SSBM and get's spiked EVERY time he approaches the edge of the stage*
Ron: Fucking musters...
Jack: What?
by PunkMasterGFunk December 23, 2010

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