Fanny bags, also known as bum bags or waist bags, are a versatile accessory that can be worn in various ways. They are perfect for carrying essentials like phones, wallets, and keys while leaving your hands free. If you're looking for an alternative term to use, there are several options. Belt bag, hip bag, and sling bag are all synonyms for fanny bags. Additionally, some people refer to them as crossbody bags or utility pouches. No matter what you choose to call them, fanny bags are a practical and stylish addition to any outfit.