I’m trying to understand the phrase va banque, which the OED defines as “In baccarat and chemin-de-fer, a bet against the whole of the banker’s stake.” (Their first cite is 1946 A. J. P. TAYLOR Course of German Hist. ii. 38: “Both dynasties desired the defeat of Napoleon; but the Hohenzollerns, having nothing more to lose, were ready to bid va banque—the Habsburgs were not.”) An apparently synonymous exclamation is “Banco,” which goes back considerably farther (1789 J. MOORE Zeluco I. viii. 38: “As he shook the box, being about to throw, the Hussar officer cried, Banco; and the others took up what they had staked.”) I gather it’s an all-or-nothing bet, but I don’t grasp how it works in the card game. Can anyone explain in simple terms, suitable to someone who has never played baccarat, what goes on when you make such a bet?