Silly to the point of being waaaaay too silly to describe in words. Silly to the infinite degree. The pinnacle of silliness. Nirvana state of silliness.
"Man, that person running around on campus in a chicken outfit was acting mahaffee-silly". "She had so many Yeunglings that she was acting mahaffee-silly". "
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.