What the hell is emo music? I have heard the term before but...
Emo (an abbreviation of "emotionally-driven Hardcore punk") is a term now broadly used to describe almost any form of guitar-driven alternative rock that expresses emotions beyond traditional punk's limited emotional palette of alienation and rage. It is also used to describe fans of this genre, most commonly teenagers. (e.g., emo kid).
Just the idea of the 'emo kid' relating to his music and saying "Yeah, maaaaaaaaaaaaaaaan, my parents don't get me either!" makes me want to

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that's exactly it! I hate when people refer to themselves as "emo kid" too, people on myspace do that a lot.