
Straight edge is a subculture and subgenre of hardcore punk whose adherents refrain from using alcohol, tobacco, and other recreational drugs. It was a direct reaction to the sexual revolution, hedonism, and excess associated with punk rock. For some, this extends to refraining from engaging in promiscuous sex, following a vegetarian or vegan diet...
Found on
http://en.wikipedia.org/wiki/Straight_edge

A strip of wood (or anything else) with parallel straight edges, used for testing.
Found on
http://www.woodworkersuk.co.uk/blog/carpentry-and-joinery-glossary/carpentr
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