"call someone's bluff" meaning in English

{
  "forms": [
    {
      "form": "calls someone's bluff",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "calling someone's bluff",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "called someone's bluff",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "called someone's bluff",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "call<> someone's bluff"
      },
      "expansion": "call someone's bluff (third-person singular simple present calls someone's bluff, present participle calling someone's bluff, simple past and past participle called someone's bluff)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "She was tempted to call his bluff, hardly believing that he would carry out his threat.",
          "type": "example"
        },
        {
          "ref": "2022 December 14, Christian Wolmar, “Productivity should play no part in pay negotiations”, in RAIL, number 972, page 46",
          "text": "Eventually the NUR overplayed its hands with an all-out strike. And when Peter Parker, the then-chairman of BR, who was well regarded among his staff, called their bluff by threatening to close down the entire network, they caved in.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To take action on the basis that another person is bluffing."
      ],
      "id": "en-call_someone's_bluff-en-verb-davM8ai5",
      "links": [
        [
          "action",
          "action"
        ],
        [
          "bluffing",
          "bluffing"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) To take action on the basis that another person is bluffing."
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-call someone's bluff.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/0/08/En-au-call_someone%27s_bluff.ogg/En-au-call_someone%27s_bluff.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/0/08/En-au-call_someone%27s_bluff.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "call someone's bluff"
}

{
  "forms": [
    {
      "form": "calls someone's bluff",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "calling someone's bluff",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "called someone's bluff",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "called someone's bluff",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "call<> someone's bluff"
      },
      "expansion": "call someone's bluff (third-person singular simple present calls someone's bluff, present participle calling someone's bluff, simple past and past participle called someone's bluff)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English terms with audio links",
        "English terms with quotations",
        "English terms with usage examples",
        "English verbs"
      ],
      "examples": [
        {
          "text": "She was tempted to call his bluff, hardly believing that he would carry out his threat.",
          "type": "example"
        },
        {
          "ref": "2022 December 14, Christian Wolmar, “Productivity should play no part in pay negotiations”, in RAIL, number 972, page 46",
          "text": "Eventually the NUR overplayed its hands with an all-out strike. And when Peter Parker, the then-chairman of BR, who was well regarded among his staff, called their bluff by threatening to close down the entire network, they caved in.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To take action on the basis that another person is bluffing."
      ],
      "links": [
        [
          "action",
          "action"
        ],
        [
          "bluffing",
          "bluffing"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) To take action on the basis that another person is bluffing."
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-call someone's bluff.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/0/08/En-au-call_someone%27s_bluff.ogg/En-au-call_someone%27s_bluff.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/0/08/En-au-call_someone%27s_bluff.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "call someone's bluff"
}