v. i. To be a jackaroo; to pass one's time as a jackaroo. [ Colloq., Australia ] [ Webster 1913 Suppl. ]
{ n. Also }. [ Jack + kangaroo. ] A young man living as an apprentice on a sheep station, or otherwise engaged in acquainting himself with colonial life. [ Colloq., Australia ] [ Webster 1913 Suppl. ]
n. 1. [ fr. Sp. vaquero. ]a cowboy, especially used of one who breaks broncos; -- used especially in California. Syn. -- vaquero. [ WordNet 1.5 ]
2. a fellow; a guy. [ slang ] [ PJC ]