Jacko Austral. slang.
(ˈdʒækəʊ)
[f. Jack n.1 30 c + -o2.]
A kookaburra (= Jack n.1 30 c).
| 1941 Baker Dict. Austral. Slang 38 Jacko, a kookaburra. 1942 C. Barrett On Wallaby iv. 80 Were they only having a close-up view, having mistaken the moving figure among the dunes for a Jacko? |