noun
(Australia, New Zealand, slang, historical) A young, brash, and impertinent, and possibly violent, troublemaker, especially one who is a gang member; a hooligan.
(by extension, Australia, slang) A high-spirited person who playfully rebels against authority and conventional norms; a maverick or scamp.
adjective
(Australia, slang) Exhibiting the behaviour or characteristics of a larrikin (noun sense).