M.,
I thought you might like to learn about EMO from a teen so here is my 14 year olds explanation:
Hello! Here is a quick crash course in EMO from a 14 year old! Emo is a shortened version of "emotional", as most moms here have already stated. It started out as a type of music, and grew into a stereotype many teens use today. Emo people typically wear dark eye make-up (Lots lots of it,and the guys wear it too), lots of black and red clothing, and will almost always have hair covering one eye, or both. They look similar to goth, but goths and emos will get EXTREMELY offended if you confuse the two. (Goths wear all black, all the time with no exception, whereas emo will wear red, black, white, and green) Both groups tend to listen to the same type of music, which generally talks about committing suicide, broken relationships, hate for the world, etc. About cutting: Cutting is not always an attempt to commit suicide. Most of the time cutting is just used as an emotional outlet for the troubles they have or "think" they have. (Some emos really do have problems at home or school, and if they don't have anyone they feel they can talk to, they may cut to express emotions) About half of the kids who claim to be emo just do it for the style and the people associated with that image.
Hope this helps!!!