jam-pack

From jam +‎ pack.

jam-pack (third-person singular simple present jam-packs, present participle jam-packing, simple past and past participle jam-packed)

1. (transitive, informal) To pack or fill very tightly.
   • 2021 October 20, Philip Haigh, “At a crossroads... and being pulled in different directions”, in RAIL, number 942, page 51:

     ScotRail General Manager Margaret Hoey told me at the reopening that she wanted to add shops but didn't "want to jam-pack the station".

• jam-packed