Upper Crust Definition
noun
Webster's New World
The highest social class or group.
American Heritage
Synonyms:
adjective
(idiomatic, informal) Posh, upper-class; pertaining to the upper crust.
An upper-crust London party.
They're aiming for a more upper-crust clientele.
Wiktionary
Other Word Forms of Upper Crust
Noun
Singular:
upper crust
Plural:
upper-crustsOrigin of Upper Crust
First known use as an idiom: 1836.
From Wiktionary
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