PS is widely used with the meaning "Post Script." It comes from the Latin "postscriptum," which means "written after." In this context, a PS is usually an additional thought added to letters or messages after they have been completed.

What PS means in social media?

Postscript, abbreviated to P.S., transcended quickly from direct mail to email marketing but is still rare to see in social media statuses. ... What's first is your status, what's unusual is your message, personality and tone, and what's last is your P.S. and it's a hugely effective under-used strategy.

What does PSS mean on Snapchat?

"Post-Post Script" is the most common definition for PPS on Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok.