Filled to the rafters and Jam-packed

Jam-packed and filled to the rafters are semantically related. in busy topic. In some cases you can use "Jam-packed" instead an adjective phrase "Filled to the rafters".

Jam-packed adjective - Containing or seeming to contain the greatest quantity or number possible.

Filled to the rafters and jam-packed are semantically related. You can use "Filled to the rafters" instead an adjective phrase "Jam-packed".