I hope so.
No. But there are straight edge "groups" that are a lot like gangs. But no, straight edge itself is not a gang, and a straight edge person is not a gang member.
A straight edge is used for making perfectly straight lines when drawing. The straight edge is placed on the paper and you use the edge to draw against.
A ruler has markings, a straight edge does not. In "straight edge and compass" constructions, you are not allowed to mark the straight edge. Things that are impossible using only a straight edge and compass are possible if markings are allowed (for example, it's possible to trisect an angle using a marked straight edge).
Yes, some people in the straight edge scene call vitamin water "straight edge water"
ed norton
Lillywhite
A ruler or straight edge.
a tattoo that has something to do with straight-edge, a subculture and lifestyle choice about not drinking, doing drugs or having casual sex. a straight-edge tattoo could be lyrics from an edge band or x's.
The Honeymooners
lulu
Barney Rubble
I'm sure there are at least 2 ed nortons in the giant world, don't you think?