Noun. It is in reference to an athlete or jock that is a genius at picking up women. I'm not sure when it started, but it probably originated in Toronto.
A person who contributes little or nothing to a given situation. Although you find galleywackers everywhere those in the workplace are the most annoying because they are likely receiving the same or greater rewards while doing little of the actual work.
Jeff was exactly right when he said the Robertscrew was a bunch of galleywackers.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the USCoast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
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.