What is what does it mean when it says added on snapchat?

When someone "adds you on Snapchat", it means they've sent you a friend request. Here's what it implies:

• Pending Friend Request: You'll see them in your "Added Me" section. You haven't yet accepted their request.
• Mutual Friends (Potentially): You might have mutual friends or contacts, which is why Snapchat suggested you to them or vice versa. They may have found you through your username, phone number, or through your quick add feature.
• Ability to See Your Public Content (Sometimes): If your profile isn't completely private (e.g., you have a public profile), they might be able to view some of your content before you accept their request.
• Once Accepted: Once you accept their request, they'll be added to your friend list. You'll be able to send them snaps and chat messages, and they'll be able to do the same with you. The visibility of your snaps and stories will depend on your privacy settings.

So in short "added on snapchat" means a friend%20request has been sent. You can either accept or deny it.