On social media sites, OP usually stands for "original poster" or "original post." The person who creates a post that others are now replying to, or that first post itself, is the OP. So when someone says OP in this context, they're referring to the person who made the original post, or to the original post itself.

What is Op TikTok?

"Original Poster" is the most common definition for OP on Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok. OP. Definition: Original Poster.

What does op mean in words?

On internet forums and message boards, OP is short for original poster, or the person who started the thread that users comment on.