Up-to-date and aware; on top of: I’m impressed by the level of techiness: people here are fully jacked in
[1990s+; fr jack, ”male plug used in telephone and electronic patching,” hence ”totally connected”]
/dʒæˈkiːn/ noun 1. (Irish) a slick self-assertive lower-class Dubliner
[jak-uh-lin] /ˈdʒæk ə lɪn/ noun 1. a female given name.
[jak] /dʒæk/ noun 1. any of various portable devices for raising or lifting heavy objects short heights, using various mechanical, pneumatic, or hydraulic methods. 2. Also called knave. Cards. a playing card bearing the picture of a soldier or servant. 3. Electricity. a connecting device in an electrical circuit designed for the insertion of a […]
[jak-uh-roo] /ˌdʒæk əˈru/ Australian noun, plural jackeroos. 1. an inexperienced person working as an apprentice on a sheep ranch. verb (used without object), jackerooed, jackerooing. 2. to work as an apprentice on a sheep ranch. /ˌdʒækəˈruː/ noun (pl) -roos 1. (Austral, informal) a young male management trainee on a sheep or cattle station