Definition of "talking point"
talking point
noun
plural talking points
A specific topic raised in a conversation or argument which is intended as a basis for further discussion, especially one which represents a point of view.
Quotations
Such an expression ["natural rights"] is, of course, an excellent talking point as a basis for argument to convince people, and perhaps through them to change the opinion of the government.
1908, J. W. Jenks, "The Principles of Government Control of Business," American Economic Association Quarterly, 3rd series, vol. 9, no. 1, p. 3
“Something attempted, something done, has earned a night's repose. You have the satisfaction of having sacrificed yourself in the interests of [your uncle].” He had found a talking point. He had reminded me of those postal orders, sometimes for as much as ten bob, which Uncle Tom had sent me in the Malvern House days. I softened. Whether or not a tear rose to my eye, I cannot say, but it may be taken as official that I softened. “How right you are, Jeeves!” I said.
1960, P[elham] G[renville] Wodehouse, chapter XXI, in Jeeves in the Offing, London: Herbert Jenkins