American Idioms – Idiom Wizard Lists Over 5,500 Idioms & Slang Descriptions

Open book

DEFINITION

Impeccable. Free of any moral, legal or financial blemish. Not hiding anything about oneself. A person who is easy to ‘read’ in the sense of understanding their motives. The term is commonly used about someone who is under investigation but swears they are uncorrupted. (Compare to What you see is what you get.)

“The mayor said he had nothing to hide his life was an open book.”

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