<p><strong>Verb (used with object)</strong></p><ul><li>jammed, jamming.</li><li>to press, squeeze, or wedge tightly between bodies or surfaces, so that motion or extrication is made difficult or impossible: The ship was jammed between two rocks.</li><li>to bruise or crush by squeezing: She jammed her hand in the door.</li><li>to fill too tightly; cram: He jammed the suitcase with clothing.</li><li>to press, push, or thrust violently, as into a confined space or against some object: She jammed her foot on the brake.</li><li>to fill or block up by crowding; pack or obstruct: Crowds jammed the doors.</li><li>to put or place in position with a violent gesture (often followed by on): He jammed his hat on and stalked out of the room.</li><li>to make (something) unworkable by causing parts to become stuck, blocked, caught, displaced, etc.: to jam a lock.</li><li>Radio: to interfere with (radio signals or the like) by sending out other signals of approximately the same frequency.</li><li>(of radio signals or the like) to interfere with (other signals).</li><li>Music: to play (a piece) in a freely improvised, swinging way; jazz up: to jam both standard tunes and the classics.</li><li>Nautical: to head (a sailing ship) as nearly as possible into the wind without putting it in stays or putting it wholly aback.</li></ul><p><strong>Noun</strong></p><ul><li>the act of jamming or the state of being jammed.</li><li>a mass of objects, vehicles, etc., jammed together or otherwise unable to move except slowly: a log jam; a traffic jam.</li><li>Informal: a difficult or embarrassing situation; fix: He got himself into a jam with his boss.</li><li>Music: jam session.</li><li>a piece of music: On November 18, the 16-year-old star dropped her new jam, marking an evolution in her sound and style.</li><li>Slang: something that one particularly likes, enjoys, or does well: Since math is not my jam, I’ll let y’all figure out the rest.</li><li>something that one finds pleasant or easy: Life isn't all jam for me just now.</li><li>a contest, meeting, or conference at which people collaborate informally, freely, and creatively: People from 158 countries registered for the jam and shared their ideas for action to improve the quality of life in the world’s cities.</li></ul><p><strong>End of Response</strong></p>