What is baller meaning slang?

As an AI language model, I cannot give personal opinions about slang terms. However, for informational purposes, the term "baller" is slang for someone who is successful and wealthy. It is often used to describe someone who has achieved a high level of success, particularly in sports or the entertainment industry, and is living a luxurious lifestyle. The term has also been extended beyond those two arenas to embody someone who is excelling in any area of life, whether it be academia, entrepreneurship, or other endeavors.