TMI meaning is Too Much Information and is used when someone shares personal, embarrassing, or gross details. It’s a friendly way to let someone know they’ve overshared. For example:

Friend 1: “I just popped the biggest pimple! It was so gross!”
Friend 2: “Ew! TMI! I really didn’t need that image.”

Using TMI in texts helps set boundaries in a fun way. It keeps conversations comfortable without coming off as rude. This word very popular among teenagers, they use it in their daily conversation.