if you go on the wikipedia for the 27 club, you'll see that it tells the clear meaning of the song. It's about Pete Wentz, and his dangerous life style, where many people thought he would join the 27 club. That's why it talks about drugs the whole time. "doing lines of dust and sweat" is like doing lines of cocaine. you can check out the wiki here: en.m.wikipedia.org/..._Club -Julia