an uncouth or unsophisticated person regarded as being of low social status.

If you are an aussie, you'll get it.

Anyway, some bogan have called their kid these names
BYLAN .. you must be kidding me.. is that child abuse ?
CARRIDYN .. good god
ESPIRIT - wasn't that the name of a clothing store..

good got I should move to south Vietnam ,,.. I'm guesing no bogans there