verb trans
to cause (e.g. a door or part of a machine) to become stuck so that it does not work or move
to fill (e.g. a street) so that passage along it is blocked
Crowds jammed the streets
to squeeze or pack (something) closely or tightly into a space
to fill (something), sometimes to excess
a book jammed with facts
to send out interfering signals in order to make (a radio signal) unintelligible
(+ on) to apply (e.g.the brakes) suddenly and violently
to become blocked or wedged
to become unable to work or move through the jamming of a part
to crowd or squash tightly together
They all jammed into the room
informal to take part in a jam session
[perhaps imitative]