Nouveau riche
Nouveau riche, meaning "new(ly) rich" in French, is a term describing persons who have quickly acquired great wealth which does not correspond to their humble social descent. Trying to buy their way into higher society, or to compensate for their inferiority complex or for past poverty, they would typically buy over-expensive and tasteless luxury items or otherwise show off their money. The opposite of nouveau riche would be the "old money" establishment, persons who have grown up in families or dynasties of the upper class, have enjoyed high-quality education and have a sense for subtlety in spending money.
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