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cookie jar

American  

noun

  1. a jar or other container for storing cookies.

  2. such a container used for storing money.


idioms

  1. have one's hand in the cookie jar, to take or attempt to take advantage of one's position by demanding or accepting favors or bribes.

    They suspected the mayor's assistant had his hand in the cookie jar.

Etymology

Origin of cookie jar

An Americanism dating back to 1940–45