jack in

phrasal verb
Updated on: 15 Nov 2017

Definition of jack in

British, informal
: to stop doing (something)
  • He was building a new shed but jacked it in and watched the ball game.
  • He jacked in his job and became a hippie.

Word by Word Definitions

jack play
  1. : a game played with a set of small objects that are tossed, caught, and moved in various figures

  2. : a small 6-pointed metal object used in the game of jacks

  3. : a playing card carrying the figure of a soldier or servant and ranking usually below the queen

  1. : to move or lift by or as if by a jack

  2. : to raise the level of

  3. : to take to task


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