monkey (esp. the Japanese macaque, Macaca fuscata), ape, non-human primate, sly person, idiot, hick, sliding wooden bolt (for holding a door or window shut), clasp used to control the height of a pot-hook, bathhouse prostitute
犬猿の仲【けんえんのなか】
like cats and dogs, (on) very bad terms, relationship of dogs and monkeys