english
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general::
Phrase(s): call someone’s bluff to demand that someone prove a claim or is not being deceptive. • All right, I’ll call your bluff. Show me you can do it! • Tom said, "You’ve made me really angry, and I’ll punch you if you come any closer!" "Go ahead," said Bill, calling his bluff.
McGrawhill's American Idioms And Phrasal Verbs