n. 1. a negotiator who hopes to gain concessions by refusing to come to terms after most other participants have signed an agreement; as, their star pitcher was a holdout for six weeks. [ WordNet 1.5 ]
2. a refusal by a negotiator to come to terms in the hope of obtaining a better deal. [ WordNet 1.5 ]
3. the act of hiding playing cards in a gambling game so they are available for personal use later. [ WordNet 1.5 ]