The label to the pledge of being clean and self-respectful. Often linked to Hard Line, the pledge is to stay drug and alcohol free. Others also choose to stay casual sex free, but that is part of the hard line life style. The three xs are like strikes... but in truth, one strike and you're out. Edge is a lifestyle not a real label. You dont have to announce it to the whole world.
"Hey man! Wanna pitch in on the weed?"
"I'm straight edge bro. I dont do stuff like that."