emo

An emotional person. Who typically has been through a lot in the past. He/she can be labeled as a rebel. He/she can be seen wearing dark clothing to express his/her feeling. He/ she could be heard listening to rock or metal.

Emo It is also a description of a type of music.
(But don't get these people mixed up with Punks, Goth, or cutter, because those are very different.)

That boy is an emo - Noun.
He's emo - adj.
I'm listening to am Emo song right now. - Music. adj.