A good example of the use of TMI in a sentence might be: "I ate way too much spicy food last night and now I've been holed up in the bathroom all morning. TMI, I know!" This kind of sentence is an example of one where someone might think sharing his experience is too personal, and later would have to come to a conclusion that one has overshared. People tend to quote TMI as proof of having shared too much detail. Do you know tmi slang, you can follow this link, here you get detailed information.