That's a mustache, you goober.

Marcokotaro said:

That's a mustache, you goober.

Both are correct.

Mustache is the most common spelling in the United States.

Moustache is used in other English-speaking countries.

gigapoon said:

Both are correct.

Mustache is the most common spelling in the United States.

Moustache is used in other English-speaking countries.

The note said "Beard~" when that comment was written.

Actually, "Hige" does mean either beard or mustache.
But with the help of the picture, we know at least she's imitating a mustache.