(music) An informal gathering of musicians to play music, especially improvised jazz or a similar genre.

Third-person singular simple present indicative form of jam-pack

present participle of jam-pack

(printing) A malfunction in a computer's printer or a photocopier or similar device occurring when sheets of paper become jammed inside.

plural of traffic jam

An open tartlet filled with jam / (rare, rhyming slang) Heart

(informal) pajamas

plural of toe jam

plural of Murrumbidgee jam

(skateboarding) A trick where the skateboarder skates over a bent pole.