A way to respond to "whats up?", it means its good.
Many variation exist like "up ball sucks" , meaning it sucks and "up balls every day all day", meaning its great all day every day
In current usage, any disastrous situation. The balls referred to are NOT testicles. The term dates from the days of wooden sailing ships when the existence of a shipboard disaster, such as plague, lack of food or water, mutiny, etc. was communicated to the outside world by hoisting large-ish, brightly painted wooden balls up into the rigging. Balls of different colors represented different disasters and therefore served as either requests for assistance or warnings to stay clear.
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.