hoon
(n & v) lout; show-off; reckless driver; behave recklessly - "stop hooning around".

A recent example of the use of this word was in an article in "The Sunday Age" on 17 October 2004. The headline read, "Plans to seize hoons' cars". The article gave the following examples of "hoon driving behaviour": "excess noise, illegal street racing, refusal to leave a public place, exhibitions of acceleration and burn-outs". The article also referred to a "dob in a hoon" telephone hotline - two Aussie words in one go!

http://ozlip.lexigame.com/ozdict.html#hoon