jack it in

To quit or abandon something, especially a career, endeavor, or enterprise. Primarily heard in UK. After two years, Janet was ready to jack it in at the firm. We're going to have to jack it in if we can't secure more funding for our project.

See also: jack

See also:

jack in
get (one's) bait back
get your bait back
a mug's game
the rules of the game
seek (something) from (someone or something)
seek from
He who rides a tiger is afraid to dismount
He who rides a tiger is afraid to dismount.
be all business

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