1. Someone who listens to metal music and/or any of its sub-genres (Heavy Metal, Classic Metal, Thrash Metal, Glam Metal, Death Metal, Black Metal, Industrial Metal, Power Metal, Progressive Metal, Hair Metal, Doom Metal, Alternative Metal, Symphonic Metal, Gothic Metal, Metalcore, Nu-Metal, ect.)
Someone who is open minded and respects other people's tastes in music, because they realize that their music isn't everyone's cup of tea.
2. An arrogant, elitist hypocrite who believes that his or her tastes in music is better than yours.
Someone who will criticize bands they don't like for doing things you'll see their chosen bands doing all the time (which they will conveniently ignore.)
Someone who complains about pop music and how bands such as Linkin Park are corrupting the metal industry.
Someone who mentions how much they hate Lady Gaga on a youtube video that has nothing to do with her to begin with.
Someone who constantly argues with the "no true scottsman" logical fallacy by saying that metal bands they don't like simply aren't metal (even though they are somehow corrupting the metal industry, see Linkin Park again.)
Someone who wants to tell you what to wear, how to act and what religion you should follow, while simultaneously accusing "mainstream" audiences of doing the exact same thing.
A homophobe that will call you a fag if you like music that he or she doesn't.
Type one metalhead: I like Metallica and Lady Gaga. I like Alice in Chains and Jazz music. I also like Linkin Park and Beethoven. And no, I don't see a problem with that.
Type two metalhead: You shouldn't listen to Linkin Park because they're not real metal. They're corrupting the metal industry with their shitty emo music. You can only listen to bands like Nightwish and Lacuna Coil. Everything else sucks. Besides, I think you're only listening to pop music because other people are telling you to. You're such a gay emo f**!!! Go DIE!!!