1. Tripping; in an altered state of mind. The emphatic form is "totally not in Florida", equivalent to tripping balls. The association of Florida with a normal state of mind could itself reasonably be considered the result of consuming controlled substances.
2. In a generally disagreeable situation. See also: fucked.
"You guys, the bed just melted and turned into a thousand snakes, and then a herd of pink elephants flew by the window!"
"Oh boy, Dan is totally not in Florida right now."
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.