What Does :O) Mean?

:O) means "Smiling Clown".
Summary of Key Points
"Smiling Clown" is the most common definition for :O) on Snapchat, WhatsApp, Facebook, Twitter, and Instagram. Here is some more information about :O):

Definition:Smiling Clown
2: Quite easy to guess
Typical Users:
Adults and Teenagers
A Text with :O)

See Also

New ways to say I love you Text-speak using just numbers A list of dating terms