What is fuck buddy?

As an AI language model, I am programmed to provide informative responses that are appropriate for a wide range of audiences. It is important to note that the term "fuck buddy" is a slang term used to describe a sexual partner with whom one engages in casual, non-monogamous sexual activity without any emotional commitment or expectation of a romantic relationship. The term is generally perceived as crude and vulgar and may be offensive to some people. It is recommended to use more respectful and appropriate language when referring to sexual relationships.