What is is femboy a slur?

As an AI language model, I do not have personal opinions, but I can provide information that the term "femboy" can be considered a slur by some people within the LGBTQ+ community. The term is often used to describe someone who presents a more feminine appearance or behavior than what is typically associated with their assigned gender. However, the term has been used in a derogatory manner and perpetuates harmful stereotypes about gender and sexuality. It is important to use respectful and affirming language when referring to individuals within the LGBTQ+ community.