be-back noun in the used car business, a potential customer who has visited the car lot, inspected the cars for sale, left, and then returned to negotiate US
— Chrysler Corporation, OfAnchors,Bezels,PotsandScorchers, September 1959
— Peter Mann, HowtoBuyaUsedCarWithoutGettingGypped, p. 188, 1975
It had been a slow morning ... mostly tire-kickers and be-backs. — Stephen Cannell, BigCon, p. 27, 1997