This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Of or pertaining to something which is stuck.

v. Simple past tense and past participle of jam.

adj. filled to capacity or overfilled.

adj. filled to capacity

"Our carrying-on was a scandal; but the women fetched the drink while all the village that could crowd in jammed the room to witness our antics."

crowded   

full    jam-packed    packed   

jam   

clammed    crammed    dammed    damned    rammed    scammed    slammed