What Does ICBSST Mean?ICBSST means "I Can't Believe She Said That".
Summary of Key Points"I Can't Believe She Said That" is the most common definition for ICBSST on Snapchat, WhatsApp, Facebook, Twitter, and Instagram.
|Definition:||I Can't Believe She Said That|
4: Difficult to guess
Adults and Teenagers
Example of ICBSST Used in a Text