From the Horse's Mouth

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Also: Straight from the horse's mouth

Meaning of Idiom 'From the Horse's Mouth'

When information comes from the horse's mouth it comes from the best authority or most dependable source, especially when the information comes directly from the person whom the information concerns or who has direct personal knowledge of the situation. 1,2,3


"Trust me, I got the story straight from the horse's mouth."

"Genine and Robby are going to break up," said Sarah. "Are you sure?" asked Vicky. "Totally sure. I got it straight from the horse's mouth. Genine told me herself."


Used since at least the early 1700's.

Although this idiom is not connected to "looking a gift horse in the mouth" it probably alludes to the notion that a horse's quality can be assessed by looking at its teeth. The idiom itself may be related to horse racing and "inside betting" where individuals would get infallible tips on horses from those closest to the horse, such as trainers or even stable-boys: Individuals who were close enough to the horse to look in its mouth. Thus, the information was coming "straight from the horse's mouth," as it were.

1. Ammer, Christine. American Heritage Dictionary of Idioms. Boston: Houghton Mifflin Harcourt, 2013.
2. Ayto, John. Oxford Dictionary of English Idioms. Oxford: Oxford U, 2010.
3. McIntosh, Colin. Cambridge Advanced Learner's Dictionary. Cambridge University Press, 2013.

More Horse or Horse Related Idioms
Horse Around
Rarin' To Go
Back the Wrong Horse
Eat Like A Horse

More Horse or Horse Related Idioms

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