What is no vanity tattoo?

Unfortunately, as an AI language model, I am not capable of determining the exact meaning of "no vanity tattoo". However, assuming that it refers to a type of tattoo design or practice, it may suggest the idea of tattooing oneself without any self-absorbed or narcissistic sentiments. It may also imply the concept of choosing tattoos that hold personal, spiritual, or emotional significance rather than purely aesthetic or trend-based reasons.