"Going Down Town..." is the name of a famous song that everyone knows by heart and joins in to finish with you as soon as you say the first three words.
"Going down town, gonna see my gal, gonna sing her a song, gonna show her my ding dong."
a famous quote from the China town film, also refers to the extent to which you are going to take them down a peg or two, generally assuming that chinatown is far away.
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.