Hudson is a town located on the St. Croix River, on the border of western Wisconsin. Hudson has a very strong gay community, and is a great place to raise a family if you want your children to be feeble-minded, arrogant, and attracted to the same sex. Hudson is Wisconsin's proverbial vagina.
Person #1: "I was driving through Wisconsin, and after I crossed the border to Minnesota, my butt really hurt...I think I have HIV now."
Person #2: "You must have gone through Hudson, WI."