Abstaining from alchohol,drugs, and casual sex. This definition comes from a song sung by the underground 80's punk band minor threat from Washington D.C. whose lead singer Ian Mckaye sang about how abstaining from aforementioned things was cool and gave you an edge up on drug users and alchoholics.
The kids didn't drink at the party because they are strait edge.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.