Don't look a gift horse in the mouth

1. Don't question the value of a gift. The proverb refers to the practice of evaluating the age of a horse by looking at its teeth. This practice is also the source of the expression “long in the tooth,” meaning old.

Example Sentences

Trumble pointed to the famous expression "don't look a gift horse in the mouth" as proof that people have always suspected a connection between health and examining an animal's teeth.

From Salon

“Honey,” Dad says, looking up from the movie we’d been watching with him on the couch, “don’t look a gift horse in the mouth.”

From Literature

But in the spirit of “Don’t look a gift horse in the mouth,” let’s just ask Fauci to whisper to D.C.

From Washington Post

Don’t look a gift horse in the mouth — and then post about it on social media.

From Fox News

Whoever came up with the phrase, “don’t look a gift horse in the mouth” surely was thinking of something akin to the offer that Missouri officials are now weighing.

From Washington Times