I think the wise AP is on to something. "Mouse" is anachronistic anyway, since it dates back to the days when FMU was trying to establish a presence on the Internets. If I hadn't been listening back then, I'd probably wonder what the hell "Mouse Pledge" is supposed to mean.
Mike, maybe you could get Tom to call it the "Horny Pledge," since it earns the pledger a blast from Horny the Horn.