V. A derrogatory phrase derived from the smaller school bus used to ferry special education students to and from school. 1) To act in an immature or stupid way. 2) To be an immature or stupid person. 3) To drive an especially large S.U.V.
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.