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jam(1) (iou)



jam adverb & adjective. Orig. US. E19.
[from JAM verb1.]
A. adverb. Closely; in close contact, with firm pressure. Foll. by against, up. E19.
Comb.: jam-full adjective packed full, completely filled; jam-pack verb trans. pack tightly, fill; jam-packed adjective tightly packed, closely crowded or squeezed together.
b. adjective. Excellent, perfect; thorough. Usu. foll. by up. colloq. M19.