Hi there little one! Have you ever heard of a friend of a friend? It's when your friend knows someone, and that person knows someone else, and then that person becomes your friend too!
Let's say you have a friend named Timmy. Timmy tells you about his friend Sarah. Sarah is a friend of a friend because you didn't know her before, but because Timmy knows her, she becomes your friend too!
Sometimes you might hear a lot about a friend of a friend, but you might not have ever met them yourself. That's okay, because they're still a friend of a friend and are part of your friend group in some way!
So, a friend of a friend is someone who is connected to you through your mutual friends. It's a fun way to meet new people and make new friends!