Straight from the horse's mouth

Meaning

Information directly from the source.

Usage

Used to cite reliable firsthand info.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

Trainers trust information about a horse by speaking to the stable.

Horse racing reports in the 19th century distinguished rumors from facts.