
Be the cat’s whiskers/pyjamas
Informal Usage
Used in casual conversations, not in formal settings.

I aced my exams; I'm the cat's whiskers!
Positive Emphasis
Expresses a high level of achievement or ability.

He's the cat's whiskers at playing guitar!
British Origin
The phrase is stereotypically British English.

You've heard? She's the cat's whiskers in London!
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