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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This idiom is used when comparing things, especially in sports; it comes from boxing where the fighters would be measured with a tape measure before a fight.
This is an expression meaning that if you are going to get into trouble for doing something, then you ought to stop worrying and should try to get everything you can before you get caught.