A neglectful or indifferent participant: Coach Phillips was a jack party, didn’t even have headphones on (1970s+ Sports)
noun 1. a scrubby pine, Pinus banksiana, growing on tracts of poor, rocky land in Canada and the northern U.S., bearing short needles and curved cones. noun 1. a coniferous tree, Pinus banksiana, of North America, having paired needle-like leaves and small cones that remain on the branches for many years: family Pinaceae
noun, Carpentry. 1. a plane for rough surfacing. noun 1. a carpenter’s plane, usually with a wooden body, used for rough planing of timber
- Jack plug
noun 1. another name for jack1 (sense 8)
noun 1. a post for supporting a floor beam, having two telescoping sections, adjustable to any height.