
Knock somebody dead
Positive Impression
Use when someone does something so well it astounds others.

Lisa's speech was so compelling, it knocked everybody dead.
Colloquial Usage
Common in casual speech or writing, but not in formal situations.

His jokes aren't just funny, they'll knock you dead!
Performance Context
Often used to describe outstanding performance in arts, sports, or business.

With her flawless dance, she knocked the judges dead.
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