Hairy SWINGER is a term used to describe an APE, specifically one that swings from tree to tree. It is derived from the combination of two words: 'HAIRY' and 'SWINGER'. The term is often used to refer to primates such as chimpanzees, orangutans, and gibbons, which are known for their ability to swing from branch to branch in the trees. The term is also used to describe humans who enjoy swinging on playground equipment or trapeze bars.