Definition of jam-packed in English:

jam-packed

adjective

informal
  • Extremely crowded or full to capacity.

    ‘rutabagas are jam-packed with nutrients’
    • ‘However, the local press is jam-packed full of letters from the local public completely objecting to wheelie bins.’
    • ‘The room was jam-packed full of people, even the halls and the doorways were crammed with people just wanting to be near.’
    • ‘The mass choir thrilled the jam-packed crowd with a medley of folk songs and theatrical dramatizations.’
    • ‘It was jam-packed around midnight and still had a sizeable crowd around 2am.’
    • ‘Always have tons of writing on the cover to make the mag look jam-packed full of exciting stuff!’
    well supplied with, replete with, overflowing with, bursting with, brimful with, brimming with, loaded with, overloaded with, abounding in, well provided with, well stocked with, rich in, abundant in, rife with
    View synonyms

Origin

1920s: from jam.

Pronunciation:

jam-packed

/ˈˌjam ˈpakt/