The made up vocabulary used by the famous Bill Nye the Science Guy. It is a play on the word ebonics which is consequently a play on the word phonics. Two words, typically of scientific significance, are made into one for comedic purposes.
"... finding microbes on Mars. Call them Marscrobes. That's Nyebonics for you guys."
-- Bill Nye speaking at the University of Florida
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.