[aD!k X aC!k]

The short answer is that it is a subculture centered around hardcore music. People who are straight edge do not smoke, do drugs or consume alcohol. There are no dietary or religious beliefs tied to straight edge contrary to media coverage. The long answer requires a bit of a history lessonIn the late 1970s and early 1980s a group of bands and kids began something that grew into a movement. It would become a movement that would outlive many of their involvement in the music and the scene. They didn't know what they were doing. They knew they didn't like what was going on around them, the self destruction, the self hatred, the pain and suffering caused by the punk mentality. The fuck you and fuck the world attitude didn't make sense to them. They took a symbol that was originally used to identify them as being too young to drink so that the bartenders would know not to serve them and they made it their own. So they started setting themselves apart by wearing X's on their hands and by singing angry songs proclaiming:"I'm a person just like you But I've got better things to do Than sit around and fuck my head Hang out with the living dead Snort white shit up my nose Pass out at the shows I don't even think about speed That's something I just don't needI've got the straight edge"