ph.
1. 停止做
If you pack something in, you stop doing it.
2. 堆满；挤满；塞满
If someone packs in things or people, they fit a lot of them into a limited space or time.
3. （戏剧、电影、活动等）吸引大批观众
If a play, film or event packs them in, lots of people go to see it.