When used *seriously*, yes. It's actually a text rendering of rushing to put the phone down on somebody before they can get in a word of objection. It signals "I have spoken, I have got the last word in, and I am not interested in listening to any response you may wish to make."

As I stylistic trick in a "getting it off your chest" rant that the person being addressed will never get to see anyway, I'm perfectly happy with it. And that's usually the context where I see it, anyway. But used in actually two-way communication? NO!!