o Emo. Short for emotional. Emo. A genre of punk rock. Emo. A dress code of tiny t-shirts and horn-rimmed glasses. Type the word "emo" into your average search engine and you'll get over three million results that will encompass nearly that many different opinions of what emo actually is. The general approach to the term is a lot like the approach to pornography, "I can't tell you exactly what it is, but I'll know it when I see (or hear) it." The basic fashion... Emo guys usually have shaggy hair