What does the Irish saying tis himself mean?

"Tis himself" is an Irish saying used to refer to a particular person in a situation. It is often used in an informal or colloquial way and is equivalent to the phrases "he himself" or "the man himself." For example, someone might say, "Tis himself that will be making the announcement," meaning that a certain man will be the one giving a particular announcement. The phrase can be used both literally and figuratively and adds emphasis or highlights the person's involvement or importance in the given context.