What is what does bestie mean?

Bestie is a slang term used to describe a person's closest and most trusted friend. It is a term of endearment and intimacy, highlighting the special bond between two individuals who share a deep sense of loyalty, understanding and support for each other. The word "bestie" is derived from the term "best friend" and is often used among younger generations as a way of expressing affection and camaraderie with their closest companions. Some variations of the word include "bff" (best friend forever) and "ride or die" (someone who will stick by your side no matter what).