Definition of "jacks" in English

noun

1. plural of jack

2. (poker slang) A pair of jacks.

3. (UK, rhyming slang) Heroin tablets (from "jacks and jills" = pills)

noun

1. (slang, now chiefly Ireland) Alternative form of jakes: an outhouse or lavatory.

noun

1. (games) A children's game involving picking up objects; knucklebones; jackstones.

   • The rest of the day he heard the children playing kick-the-can, hide-and-seek, Over-Annie-Over, jacks, tops, mibs, and the sound of the little monsters in every shrub and shadow would not let him rest.