Top definition
1. prejudice or discrimination toward individuals with mustaches.
2. behavior, conditions, or attitudes that foster stereotypes of people with mustaches.
Years of unquestioned stache-ism have lead to the belief that only cops and child molesters have mustaches.

He was passed up for a promotion at the workplace because of the stache-ism of his immediate supervisor.
by tankbeh January 11, 2011
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