o·ver·bid • v. / ˌōvərˈbid/ (-bid·ding; past and past part. -bid) [intr.] 1. (in an auction) make a higher bid than a previous bid.2. (in competitive bidding, the auction in bridge, etc.) bid more than is warranted or manageable.• n. / ˈōvərˌbid/ a bid that is higher than is justified.DERIVATIVES: o·ver·bid·der n.