Berkeley Hunt is rhythm slang for the word, 'cunt'. It is a way of saying what you're sometimes actually thinking without offending those around you.
For example, you're in the middle of a busy supermarket when a little kid runs into the back of your heels with a shopping trolley. Instead of actually saying cunt, you turn round and say, "aaahhhh, you little berkeley hunt!". This way no one is offended and you feel better.
Another example would be ask a woman to get her berkeley hunt out if you wanted a bit of 'business' off of her!
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.