jack in

Verb

jack in (third-person singular simple present jacks in, present participle jacking in, simple past and past participle jacked in)

1. (UK, idiomatic, transitive) To stop doing a regular activity, such as a job or studying.
   • I've had enough of working nights, so I'm going to jack in my job.
   • I'm going to jack my job in.
2. (music recording) To insert an electronic coupling into a receptacle; to connect to something, whether involving a physical medium or not.
3. (ambitransitive) To connect a brain directly to a computer.
   • Watchman replaced him in the linkup seat. He jacked himself into the computer.1970 June, Robert Silverberg, “The Tower of Glass”, in Galaxy Science Fiction, volume 30, number 3, page 141
   • Seven days and he'd jack in. If he closed his eyes now, he'd see the matrix.1984, William Gibson, Neuromancer (Sprawl; book 1), New York, N.Y.: Ace Books, →ISBN, page 37