Okay kiddo, so a "black american princess" is a way to describe a black woman who is very confident, intelligent, and elegant. She's kind of like a real-life princess, but instead of being part of a royal family, she makes her own rules and is a boss lady in her own right!
Now, sometimes people use this term to describe someone who is very fashionable or likes to show off their wealth, but that's not really the best way to use it. Being a black american princess is more about having a certain attitude and personality that makes people see you as a strong and powerful woman.
So if you ever hear someone say that someone else is a black american princess, just remember that it means they are a confident and powerful black woman who is making her mark in the world!