straight from the horse's mouth

From the authority

Straight from the horse's mouth means directly from the most authoritative or reliable source—the person who actually knows.

The phrase comes from horse racing, where a tip about a horse's condition would be most trustworthy if it came from the horse itself: I heard it straight from the horse's mouth—she's resigning next week.

Opposites
source directness

straight from the horse's mouthsecondhand

Having had prior ownership

through the grapevine · hearsay · second-hand · indirect · reported

reliability/verifiability

straight from the horse's mouthalleged

Claimed but unproven

unconfirmed · supposedly · unverified · apocryphal · gossip

Family

straight, straighter, straightest, straighten, straightened, straightening, straightens, straightness, horses

Familiarity
Top 50,000
Profile
Used worldwide · Timeless · Everyday, not technical · Rated G