If somewhere is jam-packed, it is so full of people or things that there is no room for any more.
INFORMAL adj oft ADJ with n
His room was jam-packed with fruit, flowers, gifts etc.
Translation English - Cobuild Collins Dictionary
Add your entry in the Collaborative Dictionary.
- Create your own vocabulary list
- Contribute to the Collaborative Dictionary
- Improve and share your linguistic knowledge
"Collins Cobuild English Dictionary for Advanced Learners 4th edition published in 2003 © HarperCollins Publishers 1987, 1995, 2001, 2003 and Collins A-Z Thesaurus 1st edition first published in 1995 © HarperCollins Publishers 1995"