emo = emotional.
I cannot stand emo's, or people who call themselves emo for attention. Its pathetic.

It also reminds me of this song, the emo song

Everything is 'emo' though these days, people call me an emo for the fact that Im a teen who listens to rock music, when I actually cannot stand the music, and listen to metal, and Im like so optimistic and never depressed. It just isnt right!