Jack In Meaning
(science fiction) To connect a brain directly to a computer.
Example: I've had enough of working nights, so I'm going to jack in my job.
I'm going to jack my job in.
1970 June, Silverberg, Robert, â€œThe Tower of Glassâ€, Galaxy Science Fiction, volume 30, page 141:
Watchman replaced him in the linkup seat. He jacked himself into the computer.
1986, William Gibson, â€œWinter Marketâ€, in Burning Chrome, page 129:
She couldn't move, not without that extra skeleton, and it was jacked straight into her brain, myoelectric interface.