Straight edge - Wikipedia, the free encyclopedia
It's actually a hardcore punk movement-- though people who are not punk often use it as there aren't really any other terms available to describe this lifestyle preference.
I'm not punk; though I believe in not drinking, smoking, doing drugs or having casual sex, and my preference is vegetarianism but due to health problems, I'm forced to eat more... so by calling myself straight edge people often know what that means rather than having me go on a tangent about what I do and don't do and why.