A True Metal Head
A real metal head is a guy who wears loose jeans, regular shoes, and a shirt with Iron Maiden on it. He knows all the good bands and doesn't care if you listen to anything from Black Sabbath to Pantera. He's not loud about it and doesn't need a whole bunch of stupid clothes to prove he's into metal.
'I don't need a metal shirt to look cool. I just need to know the lyrics to "Number of the Beast."', @MetalHeadDad
'Why do you wear a shirt with a dragon on it? You're not a kid anymore.', @RealMetalHead
'I'm not a metal head, I'm just a guy who knows the difference between a riff and a lute.', @PanteraFan