(bridge) a bid that is higher than your opponent's bid (especially when your partner has not bid at all and your bid exceeds the value of your hand). Synonym:overcall.
... can put through the deal as his manager, making all the money for yourself. Perhaps fifty dollars," says Regan, careful not to overbid and make Tim think the deal of too ... — The Best Short Stories of 1919 - and the Yearbook of the American Short Story • Various