FFS can stand for different things depending on the context. Here are some possible meanings:

• Facial Feminization Surgery: This is a gender affirmation procedure performed by plastic surgeons to give the face a more feminine appearance.
• Fee-for-Service: This is a payment model in healthcare where doctors, hospitals, and medical practices charge separately for each service they perform. In this model, the patient or insurance company is responsible for paying whatever amount the healthcare provider charges for the service.
• For fucks sake: This is a slang abbreviation used to express exasperation, frustration, anger, etc., without explicit vulgarity.

Its important to pay attention to the context to understand what FFS stands for.