The term "Real McCoy" has a long-standing history that originates from a Scottish inventor named Elijah McCoy. "Real McCoy" means an authentic or genuine article, a phrase we use to describe things that are the real deal. There are several synonyms for "Real McCoy" including the genuine article, the real thing, the authentic item, the original, the bona fide, the true-to-life, and the legitimate article. These expressions can be applied to anything that is genuine, such as an original piece of artwork, an antique, a vintage car, or a person with authentic personality traits. Simply put, when someone or something is referred to as the "Real McCoy", it is deemed to be authentic, original and of high quality.