A Happy Birthday Celebration with a twist in that the Birthday boy/girl is going out on the town to celebrate with a few drinks.
Meant as a fun way to say Happy Birthday
One's 21st birthday when they get completely piss drunk and throw up everything that is in their digestive tract including some internal organs. There is the possibility of throwing up to the extent that you end up swimming in your puke. If you don't know how to swim, you will die on your barfday because you will drown in your own stomach acid and partially digested food.
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.