dissect: to take apart, look inside, cut open

Headbanger: Person prone to banging one's head.
Ignorant: Headbanger.
Welcome class, to Music 101. Today we'll be discussing the art of headbanging, and those who partake in such an art, namely, headbangers. Headbangers primarily listen to loud, outdated music that died along with the eighties. Although there are sensible headbangers, and even some decent headbanger bands, the majority of headbangers are known to be overly hostile when they feel their music is being threatened, defensive of their artform, and prone to violent attacks if you make fun of spandex or poofy hair. They can easily be recognized by their oversized headphones (which are ALWAYS hanging around their neck).