According to the search results, an "FBoy" is a term used to describe a man who is emotionally unavailable, self-serving, and views relationships as purely transactional. They are known for stringing people along and not treating them with respect. The term "FBoy" is a shortened version of "fuckboy," which is a derogatory term used to describe a man who uses women for his own pleasure and then discards them. The term has gained popularity in recent years and has been used in various contexts, including as the title of a reality dating show called "FBOY Island". In the show, contestants are divided into two groups: "nice guys" and "FBoys," and the women must choose whom to eliminate based on their behavior. Overall, the term "FBoy" is used to describe a man who is not interested in a genuine relationship and instead uses others for his own benefit.