Say you are playing a video game where you are trying to score points. Before scoring one might say "woosher" loudly or under their breath and then will proceed to score. try it :P
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.