IdiomAnimalsEnglish

not look a gift horse in the mouth

Meaning: To find fault with a gift or to refuse a gift, usually because one is suspicious of the giver's motives.

Example: “The used bike has a few scratches, but don't look a gift horse in the mouth.”

Equivalents in other languages

Origin: A horse's age can be judged by its teeth, so checking a gift horse's mouth means inspecting a present for its value. The saying is very old: St. Jerome quoted a Latin version in the 5th century, and John Heywood's proverb collection (1546) gives it in English.

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