This
database is a comprehensive collection of all the American idioms and slang available.
American Idioms are many and varied. We hope you enjoy our collection. We are adding more all the time.
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A basic rule that is usually but not always correct.
As a rule of thumb, plant tomato seeds three inches deep. Based on the use of ones thumb as a rough measurement tool. Generally correct for course measures. Most old English measures of distance were based on the body measurements of the king -- the length of the foot, inch (thumb tip to first knuckle), cubit (elbow-to-fingertip), and yard (nose-to-fingertip).
I visited the doctor today and was given a clean bill of health. This widely used term has its origins in the "Bill of Health", a document issued to a ship showing that the port it sailed from suffered from no epidemic or infection at the time of departure.