(idiomatic, UK) 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.
Jack-in Sentence Examples
The score having been counted, the leader then places the mat, usually within a yard of the spot where the jack lay at the conclusion of the head, and throws the jack in the opposite direction for a fresh end.
In the past, places like PETCO and Jack in the Box have offered coupons, and Costco sometimes has discounted tickets available for member purchase.
Stretch and touch them together, as though you were performing a jumping jack in a seated position.