Stuck. / Overcrowded; congested.

simple past tense and past participle of jam

Third-person singular simple present indicative form of jam

plural of jam

(mining) Alternative form of jamb

(dated) A kind of frock for children.

A sweet mixture of fruit boiled with sugar and allowed to congeal. Often spread on bread or toast or used in jam tarts. / (countable) A difficult situation.

To get something stuck, often (though not necessarily) in a confined space. / To brusquely force something into a space; to cram, to squeeze. / To render something unable to move.

present participle of jam

(slang) Great; awesome.