larrikin

adjective

1. (Australia, slang) Exhibiting the characteristics or behaviour of a larrikin; playfully rebellious against and contemptuous of authority and convention.

noun

1. (Australia, New Zealand, slang, dated) A brash and impertinent, possibly violent, troublemaker, especially a youth; a hooligan.

2. (Australia, slang) A high-spirited person who playfully rebels against authority and conventional norms.