Sergeant Parrott normally spoke with an upper-crust accent.
帕洛特中士说话时总带着上等阶层的口音。
《柯林斯英汉双解大词典》
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For technophobes, the word also is familiar from the 1990 movie "Pretty Woman," in which Julia Roberts startles her date's upper-crust friends with a hearty "woot, woot, woot!" at a polo match.
The building was originally constructed as a hotel for uppercrust springs society, but has long since been converted into offices for lawyers, accountants and such.