fix, hole, jam, mess, muddle, pickle, kettle of fish: informal terms for a difficult situation "he got into a terrible fix", "he made a muddle of his marriage"
jamming, electronic jamming, jam: deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems
verb
throng, mob, pack, pile, jam: press tightly together or cram "The crowd packed the auditorium"
jam: push down forcibly "The driver jammed the brake pedal to the floor"