That gross dark peach fuzz above people lips, mostly occurring in boys ages 13 to 15. It's the beginning of a mustache, and sometimes they are hardly visible, but still unsightly. These guys always notice it themselves, but refuse to shave it off because they either think that no one notices it, or it looks cool and grown up.
Tween Girl 1: Ohh, did you see Brad in the hallway? He's pretty cute.
Tween Girl 2: I guess so. Too bad he has a dirt lip, or I would consider dating him.
Tween Girl 1: Man oh man is that thing unsightly!