1. Somebody who likes the music of the 'Metal' genre of music.
2. A device used for cooling, usually oneself. Metal fans tend to be more of the industrial variety, i.e. larger and more powerful.
I'm a big Metal fan. I like the classics, like Led Zepplin, Black Sabbath, Motley Crue, but new stuff as well, like Wolfmother and Children of Bodom.
I'm a big Metal fan, too. *spin* *spin* *spin*