Early generations of short wave radios had large flat tuning dials requiring spreading all five fingers and placing them on the circumference of the dial in order to gently turn the dial right or left to tune in a distant location (Rangoon). Spatially, the gesture resembles that of palming a woman's ample breast.
Two guys are sitting in a bar, in walks a woman with large breasts, one guy turns to the other, winks and says 'Come in Rangoon.'
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.