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Noun: (must-ee-sh)
-The transitional stage of facial hair growth before achieving a full mustache.
-Causes the wearer to instantly appear creepy and/or like a douche bag.
-Commonly found on adolescents trying to look older, or what you would expect to see on child molesters.
Did you see that guy with the musteiche on that park bench next to the playground? I'm calling the cops.
by TuckDiesel June 03, 2010
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