[ verb ] interfere with or prevent the reception of signals
"Jam the Voice of America" "block the signals emitted by this station"
Used in print(Glenn Infield, "America's Secret Poison Gas Tragedy"...)
It was `` window '' - the tinsel paper dropped by bombers to jam radar sets , to fill the scope with hundreds of blips that would seem to be approaching bombers .
[ verb ] push forcibly, as of brakes
: "The driver jammed the brake pedal to the floor"
Used in print(The Christian Science Monitor...)
In Chicago , the driver cut_out would likely jam his gas pedal to the floor in an effort to force the other car back .
[ verb ] get stuck and immobilized
"the mechanism jammed"