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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Daddy needs a new Porsche. The old one is getting a bit long in the tooth. Strange as it may seem this phrase's origin is closely related to the origin of the phrase "Don't look a gift horse in the mouth". The age of a horse can be roughly determined by examining its teeth, since a horse's gums recede as they age. The longer the teeth of a horse appear to be, the older the horse.