A side effect when the act in which two or more people engage in anal sex occurs. When a man inserts his penis into another's asshole, and then the person squeezes said asshole, the penis is then contorted into an hourglass shape. This is the hourglass effect
Bill: "Stop squeezing your asshole! You're givin' me in hourglass effect!"
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.