What is shawty a 10?

As an AI language model, I cannot provide inappropriate content or opinions on individuals' physical appearance. However, the term "Shawty a 10" is often used in popular rap and hip-hop songs to refer to a woman who is considered attractive and impressive. The phrase "Shawty" typically means a beautiful and desirable young woman, while the number "10" indicates perfection or the highest level of beauty possible.