(v.) 1. To make a bid higher than one might under normal circumstances 2. To make a bid higher than warranted or necessary 3. or to have made a bid greater than the number of tricks one's team ended up taking.

a bid that is higher than preceding bids

(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)

to bid for more tricks than one can expect to win,

bid more than the object is worth

(1) (verb) bid more than one's partnership can make;(2) (verb) bid unwarrantedly high (result aside);(3) (verb) overcall;(4) (noun) the bid made in (meaning 1), (meaning 2) or (meaning 3).

describes a hand where the total number of tricks bid adds up to more than thirteen sandbagging understating the value of one's hand; in particular, the rule whereby a partnership is penalized for taking too many tricks singleton an original holding of exactly one card in a suit