wash trade
n.— «In the natural gas case, there are examples of traders who agreed to buy the same amount of natural gas from each other in what is known as a “wash” trade, so they could report a high trade price to an industry publication whose trading reports set market prices for natural gas throughout the region.» —“Sempra Ordered to Turn Over Tapes” by Elizabeth Douglass in San Diego Los Angeles Times Aug. 9, 2006. (source: Double-Tongued Dictionary)
Further reading
What’s up with ketchup? The shifting history and spelling of the name of this condiment. For centuries, ketchup was a fishy sauce originating in Asia—the tomatoes came only later! Plus, a new book shows what’s lost when a language dies: when there...
Brownie points, or “credit earned for good behavior or useful effort,” was probably popularized by a fanciful 1951 Los Angeles Times column about how husbands supposedly score points on an invisible domestic scorecard by doing household chores. The...