Definition from Wiktionary, the free dictionary
- (transitive, idiomatic, Britain) To stop doing a regular activity. Often a job or studies.
- I've had enough of working nights, so I'm going to jack in my job.
- I'm going to jack my job in.
- (music recording, computing, electronics) To insert an electronic coupling into a receptacle; to connect to something, whether involving a physical medium or not.
- (science fiction) To connect a brain directly to a computer.
1986, Gibson, William, “Winter Market”, in Burning Chrome, page 129:
- She couldn't move, not without that extra skeleton, and it was jacked straight into her brain, myoelectric interface.
- jack it in UK
- In the British idiom, the object may appear before or after the particle. If the object is a pronoun, then it must be before the particle.
- (science fiction): Brave New Words: The Oxford Dictionary of Science Fiction, Oxford University Press, 2007, p. 103
- (science fiction): jack in v. at the OED Science Fiction Citations Project