At most dances, there's a big grindfest in the middle of the dance floor, where all the girls are back to back in a big circle grinding asses together, while all the guys make a bigger circle around them, jumping up and down and acting like frat guys.
Suzy: Did you go to the dance?
Annie: Yeah.
Suzy: I didn't see you.
Annie: I was in the middle..in the grindfest.
Suzy: Whore.
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.