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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(UK) This is a cliched way of telling the driver of a vehicle to start driving. It is supposed to be an order to a chauffeur (a privately employed driver). The full phrase is 'Home, James, and don't spare the horses'.