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Dorakko
clever pool?
Herrmobel
Nope, unless someone comes up with a clear explanation.
lolin86
Must be a freaking word play, Japanese people love that stuff
Hakura
Regarding the water heater, the spout and the connecting hinge gives the appearance of a dog, while Inubashiri Momiji is a wolf spirit, in Touhou. The (rather unfunny) joke is that despite being called a wolf, Momiji (as a water heater) looks more like a dog.