horse's mouth

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.

To go straight to the proverbial horse’s mouth, the IRS has very simple rules about what is not considered a gift that triggers a taxable event.

"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."

“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.”

He took a deep breath and held the bridle out between his hands, then thrust it at the horse’s mouth.