"Social multitasking" --- spending "quality time" with two or more "close friends" (i.e., pals whom you are so comfy with that you don't mind being "up close and personal" with them.
Time-sharing can be lots of fun and wonderfully soul-soothing emotional support for everyone involved... for example, a big flexible-limbed dude can either take a relaxing country-lane stroll hand-in-hand with his two favorite chicks ambling placidly along on either side, or he can sit on a park-bench between his two blinky-eyed admirers and cradle one of the nice girls in each arm. Or a warm-hearted cutie can lift up her t-shirt and "suckle" two "milk-thirsty" guys at once, or she can lounge back into one guy's arms while casually draping her legs over into another mushy-hearted male admirer's lap so that he can massage her feet and knead her calves.
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.