"langue de vipère" meaning in French

{
  "forms": [
    {
      "form": "langues de vipère",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "langue de vipère f (plural langues de vipère)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "96 4",
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "98 2",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "99 1",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "serpent's tongue, tendency to speak maliciously"
      ],
      "id": "en-langue_de_vipère-fr-noun-wQ~dTBhV",
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "serpent",
          "serpent"
        ],
        [
          "tongue",
          "tongue"
        ],
        [
          "malicious",
          "malicious"
        ]
      ],
      "raw_glosses": [
        "(derogatory) serpent's tongue, tendency to speak maliciously"
      ],
      "related": [
        {
          "_dis1": "98 2",
          "word": "mauvaise langue"
        }
      ],
      "tags": [
        "derogatory",
        "feminine"
      ]
    },
    {
      "categories": [],
      "glosses": [
        "person with such a tendency, malicious gossip"
      ],
      "id": "en-langue_de_vipère-fr-noun-3e1NuA87",
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "tendency",
          "tendency"
        ],
        [
          "gossip",
          "gossip"
        ]
      ],
      "raw_glosses": [
        "(derogatory) person with such a tendency, malicious gossip"
      ],
      "tags": [
        "derogatory",
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/lɑ̃ɡ də vi.pɛʁ/"
    },
    {
      "audio": "LL-Q150 (fra)-Lepticed7-langue de vipère.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/ba/LL-Q150_%28fra%29-Lepticed7-langue_de_vip%C3%A8re.wav/LL-Q150_%28fra%29-Lepticed7-langue_de_vip%C3%A8re.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/ba/LL-Q150_%28fra%29-Lepticed7-langue_de_vip%C3%A8re.wav/LL-Q150_%28fra%29-Lepticed7-langue_de_vip%C3%A8re.wav.ogg"
    }
  ],
  "word": "langue de vipère"
}

{
  "categories": [
    "French countable nouns",
    "French entries with incorrect language header",
    "French feminine nouns",
    "French lemmas",
    "French multiword terms",
    "French nouns",
    "French nouns with red links in their headword lines",
    "French terms with IPA pronunciation",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "langues de vipère",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "langue de vipère f (plural langues de vipère)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "related": [
    {
      "word": "mauvaise langue"
    }
  ],
  "senses": [
    {
      "categories": [
        "French derogatory terms"
      ],
      "glosses": [
        "serpent's tongue, tendency to speak maliciously"
      ],
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "serpent",
          "serpent"
        ],
        [
          "tongue",
          "tongue"
        ],
        [
          "malicious",
          "malicious"
        ]
      ],
      "raw_glosses": [
        "(derogatory) serpent's tongue, tendency to speak maliciously"
      ],
      "tags": [
        "derogatory",
        "feminine"
      ]
    },
    {
      "categories": [
        "French derogatory terms"
      ],
      "glosses": [
        "person with such a tendency, malicious gossip"
      ],
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "tendency",
          "tendency"
        ],
        [
          "gossip",
          "gossip"
        ]
      ],
      "raw_glosses": [
        "(derogatory) person with such a tendency, malicious gossip"
      ],
      "tags": [
        "derogatory",
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/lɑ̃ɡ də vi.pɛʁ/"
    },
    {
      "audio": "LL-Q150 (fra)-Lepticed7-langue de vipère.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/ba/LL-Q150_%28fra%29-Lepticed7-langue_de_vip%C3%A8re.wav/LL-Q150_%28fra%29-Lepticed7-langue_de_vip%C3%A8re.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/ba/LL-Q150_%28fra%29-Lepticed7-langue_de_vip%C3%A8re.wav/LL-Q150_%28fra%29-Lepticed7-langue_de_vip%C3%A8re.wav.ogg"
    }
  ],
  "word": "langue de vipère"
}