A remeark that must made when someone gets beer spit on them while a a body of water, i.e. a pool, floationg down a river and such. The reciver of the beer shower cannot get angry either, they must enjoy the refreshing experience.
Bob: (spitsbeer on Joe's face)
Joe: Ahhh, refreshing!
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.