cashed up bogan

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Australia A person who is, or is perceived to be, unsophisticated or of a lower class background but achieving a high salary, who spends money on flashy or trashy items to fulfil their aspirations of higher social status. The stereotype includes having speech and mannerisms that are considered to denote poor education and uncultured upbringing, which is reflected in their bad taste possessions and lifestyles.