I'm sorry to be resurrecting another moribund thread, particularly since I'm also going to be dragging the tone of this website down, but what the hell. I've always been of the belief that hot dogs were named after dogs in - to be as polite as I can - a state of excitement. The only positive evidence I can adduce is an interview I heard on the radio many years ago with the biographer Dame Felicitas Corrigan, who had at the time been a cloistered nun for the larger part of the 20th century. At one point the interviewer referred to a hot dog, at which the normally urbane Dame Felicitas bridled, and said that when she was a young woman that was not an expression to use in polite society. I can't think of any other explanation for her reaction. Anyone?