2. Noun. (Australia slang) A lout. ¹
3. Noun. (Australia New Zealand slang) One who drives excessively quickly, loudly or irresponsibly; a street drag racer often driving heavily-customized cars. ¹
4. Verb. (Australia New Zealand slang) To drive excessively quickly, loudly or irresponsibly. ¹
5. Noun. (dated) A unit of weight, used to measure opium in British-controlled China. ¹
¹ Source: wiktionary.com
Definition of Hoon
1. a lout [n -S]