jam tomorrow Definition

jam¹
noun

1. A thick sticky food made from fruit boiled with sugar, used as a spread on bread, etc.

Thesaurus: preserve, jelly, marmalade, conserve, spread.

Idiom: jam tomorrow

colloq
Something agreeable which is constantly promised but which never arrives

Idiom: money for jam

colloq
Money easily made.

Idiom: want jam on it

colloq
To expect more than is reasonable.

Etymology: 18c.