cat's whiskers

noun

Definition of cat's whiskers

informal + old-fashioned
:a highly admired or exceptionally excellent person or thing
  • … he was the cat's whiskers, a business wunderkind, becoming chairman of a Fortune 100 company at the age of 38 on merit, not inheritance.
  • —Allan SloanNewsweek21 July 1997

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First Known Use of cat's whiskers

1921


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