get straight from the horse's mouth

get (something) straight from the horse's mouth

To obtain information from the original or most reliable source. A: "Is our test really getting rescheduled?" B: "Yep, Mrs. Whitford told me. I got it straight from the horse's mouth!" You shouldn't believe anything you hear about the company unless you get it straight from the horse's mouth.
See also: get, mouth, straight
Farlex Dictionary of Idioms.

get something straight from the horse's mouth

Prov. to get information from the person most directly involved or best informed. Jill: Sue is going to have a baby. Jane: Who told you that? Jill: I got it straight from the horse's mouth. There's a rumor that Randolph is moving to Alaska, but I won't believe it until I get it straight from the horse's mouth.
See also: get, mouth, straight
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • get (something) straight from the horse's mouth
  • hear (something) straight from the horse's mouth
  • (straight) from the horse's mouth
  • straight from the horse’s mouth
  • from the horse's mouth
  • the horse's mouth
  • I can't believe it/that/this
  • I can't believe!
  • bend over, here it comes again
  • BOHICA