A Female Mustache.
A dense grouping of hair on the upper lip of a female. Often seen on Hispanic or Italian Women with poor grooming skills.
Common causes are: lack of self worth, lesbianism, and a fearful or apathetic disposition toward 'waxing'
Bro #1: "Holy shit dude, that woman has more hair on her lip than Yosemite Sam!"
Bro #2: "Oh, Gross! Yup, She definitely has a Femustache!