A prison wallet is a slang term that refers to the rectum or vagina, used as a place to conceal prohibited items in prison. However, the term "prison wallet" is also used to describe a type of pouch or wallet that can be worn around the waist or shoulder. These pouches are designed to be versatile and can be used as a fanny pack, cross-body pack, or shoulder bag. They are often made of durable materials and can be purchased from various retailers, including Qilo and Etsy. It is important to note that the term "prison wallet" is primarily used in the context of prison slang and may be considered offensive or inappropriate in other settings.