An emo boy, is a male of any age who wears black form fitting clothes, has long, usually black, hair that covers his face and listens to music that would many anyone want to slit his wrists. Supposedly, they are sensitive and in-tune with their emotions. Mindless girls often call emo boys hot although it's impossible to tell from that huge chunk of overgreased, overdyed hair hanging in his face. Emo boys are almost as annoying as emo girls.
Girl: Wanna chill tonight?
Emo boy: Can't. I have to go write poems about my dead cat.
Girl: Go get a real hair cut.