From the horse's mouth

Meaning

Direct from the source.

Usage

Emphasizes reliability of firsthand information.

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.

Racing and betting circles trusted information from the stables.

19th century horse racing reports contrasted rumors with details from stables.