not turn a hair

Meaning: To show no reaction at all.

Language: English

Literally: (Already vivid in English)

Example: “The fire alarm went off and the cat didn't turn a hair.”

Category: Animals

Origin: From horses: a horse that has been worked hard shows it in a ruffled, sweat-turned coat, so one that has not turned a hair is entirely unruffled. The phrase is recorded from the 18th century.

Equivalents in other languages

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