CMIIW is an abbreviation that stands for 'Correct me if I'm wrong.' It is used in text messages and online communication to indicate that the sender may not be entirely sure of the information they are sharing and are open to being corrected if they are mistaken.
CMIIW is a fairly common abbreviation used in online and text communication. It is often used in discussions or debates where accuracy and precision are crucial, such as in academic or professional settings.