from the horse's mouth

Idioms  

1. From a reliable source, on the best authority. For example, I have it from the horse's mouth that he plans to retire next month. Also put as straight from the horse's mouth, this expression alludes to examining a horse's teeth to determine its age and hence its worth. [1920s]

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Example Sentences

“So, you got it right from the horse’s mouth with the guy who understood what he was doing.”

From Los Angeles Times

Yet according to this new book, an oral history of McCartney’s band Wings, there is still much to be excavated from what is the most examined life in pop music history, especially when it comes from the horse’s mouth.

From Los Angeles Times

"Gregg told me those people have a dreadful life. 'We're doing good', he told me. That was from the horse's mouth, so I won't let anyone tell me we shouldn't have been there."

From BBC

“People might think this is a better forum in which to get, from the horse’s mouth, what the different presidential tickets actually stand for.”

From Los Angeles Times

"Anthony, you're getting it from the horse's mouth himself: I'm here, I'm ready to go," Wilder said.

From BBC