Friend: "I just had the spiciest tacos, and now my stomach is a mess!"

You: "Whoa, TMI! I didn’t need that mental image!"

In this example, TMI meaning refers to sharing too many personal details, which might make the listener uncomfortable. It’s often used playfully when someone overshares about health, relationships, or personal habits. I hope you understand that how can you use it in your chats with your friends.