from this interview http://gothamist.com/2008/10/22/charlie_looker_extra_life.php :
"I got into wearing black hoodies at the same time as I got into punk, metal, playing in bands, and being negative. "Black Hoodie" is about not being able to grow out of adolescent issues and problems because those problems have become part of the basic fabric of how you see yourself. In the song, the hoodie is something you hide in. It's comfortable, but it's negative. It's taking your kid problems, weaving a black cloak out of them and just hiding in it, saying "fuck it, this is how I am". So the song it about getting older, and seeing Death on the horizon wearing HIS black hoodie, and realizing that you haven't changed since you were a kid and in fact your whole life has been death. I don't feel this way most of the time, it's just a song. But that's what the song is about."