From Longman Dictionary of Contemporary Englishthe thing isthe thing isEXPLAIN spoken used when you are going to explain something, give the reason for something, or give an opinion‘It sounds like a good idea. Why don’t you invest?’ ‘Well, the thing is, I can’t afford to.’the thing is thatThe thing is that you can’t always judge your own work. →thing
Examples from the Corpus
the thing is that• And the thing is that it was just crazy!