verb

1. To get something stuck in a confined space.

   “Her poor little baby toe got jammed in the door.”

2. To brusquely force something into a space; cram, squeeze.

   “The rush-hour train was jammed with commuters.”

3. To cause congestion or blockage. Often used with "up"

   “A single accident can jam the roads for hours.”

Synonyms: ram

adjective

1. Stuck.

   “How to treat a jammed finger or toe.”

2. Overcrowded; congested

   “A jammed Oktoberfest beer tent.”