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the few tiny hairs that grow on the sides of a persons upper lip. often seen on mexicans and young boys who can't grow in a full mustache yet. reference to the "mustaches" on catfish.
sorry, you can't grow a real mustache yet, but those little whiskers on the sides of your lips are shaping up to be a pretty good catfish mustache
by taniawarf August 15, 2010
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