Bill Of Goods
(idiomatic) A set of misleading or deceptive claims; misinformation.
Example: 1884, Horatio Alger, Do and Dare, ch. 18:
"This morning," he said, "I foolishly gave Eben a hundred dollars, and sent him to Boston to pay for a bill of goods which I recently bought of a wholesale house on Milk Street."
1956 Aug. 27, "Harry's Bitter Week," Time:
Truman bought quite a bill of goods from the old cronies who had flocked to Harriman.