The word "丑八怪" is formed by combining three characters: 丑, meaning "ugly"; 八, meaning "eight"; and 怪, meaning "strange" or "monster". It literally translates to "ugly eight monsters", where "八怪" historically refers to grotesque or mythical beings, often from folklore or opera, and the addition of "丑" specifically emphasizes ugliness, creating a term for someone perceived as extremely unattractive or grotesque.