I don’t know Japanese, and I’m unfamiliar with the names of provinces in Japan. But I might be able to learn them with this helpful rebus map (“sounds like…”).
Apparently, “a monkey looks at” is fairly common, as are stools, fire, and false teeth. If someone with a knowledge of Japanese could enlighten me about which province sounds like “a fart flying out of someone’s ass,” I would be extremely grateful.
Map from a postcard circa 1800. Image courtesy Wikimedia Commons, user Fraxinus2.