posh

This term carries a strong association with social stratification and class markers. While it can be a neutral descriptor of luxury, it often carries a subtle edge of irony or criticism, implying a level of pretension or an effort to appear superior through material wealth and specific mannerisms. When used as a verb in the phrasal form "posh up," the word shifts toward a sense of superficial enhancement. It suggests a cosmetic transformation intended to deceive or impress, rather than a genuine increase in quality or value.