Dot, I'm not sure whether your puzzlement relates to the question or to my response to it. If the latter, a mantra is a constantly chanted phrase...such as Noo Labour, Loony Leftie...and incommunicado means lacking the means of communication.
My point was that our little band of AnswerBank right-wingers, most often seen in the News category here, are very fond of chanting these words, clearly dreamt up years ago by someone OTHER than themselves. In other words, they are not communicating anything original.