# jack in

idiom

Source: https://englishreference.com/idiom/jack-in
Updated: 2026-08-10

## Meaning

To stop doing a regular activity, such as a job or studying.

## Examples

- I am tired of this job and want to jack it in.
- He hated the long hours at the office, so he decided to jack in his position and travel.
- After years of struggling to find success in the industry, she finally decided to jack in her career and pursue a quiet life in the countryside.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.