If you are in charge of a group of people there is no point in doing the work yourself, instead of making your workers do it for you.
The supervisor Phil was shoveling sawdust while his workers were watching. Marcus yelled out 'there is no point in having a tail and wagging it'. Phil put the shovel down and made the workers do the shoveling.
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.