try explaining the term bogan to someone who has no idea what a bogan is. My words would probably lie along the lines of
Loud obnoxious driver of a loud obnoxious car
which I think is pretty apt, and quite general. A more specific definition would add..
... usually complete with loud (and not always good) stereo. Often found around the main streets in town
The bogans however should not be confused with the boy racers, who generally have much nicer cars, with nicer stereos. Boy Racers are predominatly found showing off their cars, Bogans are doing their own things, burnout parties (when the police dont catch em) and being very relaxed. 'Real' Bogans can be often identified by their grunge type attire

This is not to say however that Bogans are bad, in a way I would have to describe them as somewhere in between Boy Racer and Westie (if you dont know what a westie is, take a look at the New Zealand stand up comedian Ewan Gilmore for a public example.. or poke your head around West Auckland, westies seem to be more commonly without cars however). Previously to the police cracking down on it, burnout parties seemed to be quite common, tho with the drinking laws changing last year all the 18 y.o bogans have dissapeared off to the pub presumably. Also the new bogan pastime seems to be throwing a couch on a trailer (or ute) and carting it out to the beach, carrying the couch down to the beach and sitting there drinking Jack Daniels and Cola out of premix bottles all day. Clocking out at 5pm when the time comes to head back home ready for a night out. Go down and have a look one fine day if you're in christchurch. I will be betting that come summer once again we will find bogans around Marine Parade, on the beach, and especially around sumner.