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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be extremely secretive and cautious about something (holding
playing cards close to your chest so the other players can't see
them)
be extremely secretive and cautious about something (holding playing cards close to your chest so the other players can't see them)My boss always plays his cards close to his chest when he is negotiating with another company.