adv. or adj. phr. 1. On a floor of a ship open to the outdoors. The passengers were playing shufflehoard on deck. The sailors kept busy cleaning and painting on deck. 2. informal Ready to do something; present. The scout leader told the boys to be on deck at 8:00 Saturday morning for the hike. Dick was at bat, and Bob was on deck.
ON DECK
Meaning of ON DECK in English
American idioms English vocabulary. Английский словарь американских идиом. 2012