pack in phrasal verb ( see also ↑ pack )
1 . pack something ↔ in ( also pack something into something ) to do a lot in a limited period of time, or fit a lot of information, ideas etc into a limited space:
We packed a lot of sightseeing into two weeks.
In an essay of 2,000 words, you can pack a lot in.
2 . pack somebody ↔ in informal if a film, play etc packs people in, it attracts large numbers to come and see it:
Any film starring Tom Cruise always packs them in.
3 . pack something ↔ in British English informal to stop doing a job or activity that you are not enjoying:
After one year, I packed in university.
Sometimes I feel like packing it all in and going off travelling.
4 . pack it in British English spoken used to tell someone to stop doing something that is annoying you
5 . British English informal if a machine packs in, it stops working because there is something wrong with it SYN pack up :
Halfway to the airport, the engine packed in.