dipstick poll
n.— «Afterward, he said, he will ask viewers to call a 900 number in a “crude dipstick” poll to determine whether Americans want political reform or not.» —“And now, here’s Ross—again Perot to kick off new TV spots, and the topic is US woes” by Adam Pertman Boston Globe Mar. 20, 1993. (source: Double-Tongued Dictionary)