paper airplane
n.— «The jetliner makers are just “throwing paper airplanes at each other,” Wolfgang H. Demisch, aerospace analyst at Morgan Stanley, said last week. He suggested that none of the proposed aircraft may reach the market because “the airlines currently have difficulty getting two nickels to rub together.”» —“Jostling To Power Up The Next Jets” by Eric Pace New York Times July 19, 1981. (source: Double-Tongued Dictionary)