In an earlier episode, we talked about the butterfly mating behavior known as hilltopping, in which male butterflies try to appeal to females by flying as high as possible. A listener in Fairbanks, Alaska, reports that the term hilltopping is used among sledheads, or “snowmobile enthusiasts,” to mean a different kind of showing off — riding up a hill on a snowmobile as high as possible before falling back. This move is also called hightopping. This is part of a complete episode.