Hairballs are a common feline issue that owners must manage. Luckily, there are a variety of synonyms that can be used to describe this pesky problem, including furball, trichobezoar, hair clog, hair clump, and fur obstruction. All of these terms refer to a clump of hair that a cat has ingested from grooming themselves, which can then accumulate in the stomach and cause digestive issues. To help prevent hairballs, owners should regularly groom their cats and provide them with specialized hairball formula food or treats. If a cat does experience frequent hairballs, it is important to consult with a veterinarian to rule out any underlying medical issues.