A best friend tattoo is a type of tattoo that is shared between two best friends. It is usually a matching tattoo that symbolizes the bond between them. It can be a simple symbol or a phrase shared between them. It is a way to show that they are connected and have a special bond that will last a lifetime. Best friend tattoos can be found in a variety of shapes and sizes, and they can be customized to represent the two friends. They can also be used to represent a special moment or event that the two friends shared.