"bla-bla" meaning in French

{
  "etymology_text": "The word is given as onomatopoeic or possibly related to blaguer by le Trésor de la langue française.\nIt appears in the French language in 1945 and could also be a borrowing from earlier English blah.",
  "forms": [
    {
      "form": "bla-bla",
      "tags": [
        "plural",
        "traditional"
      ]
    },
    {
      "form": "bla-blas",
      "tags": [
        "error-unknown-tag",
        "plural"
      ]
    },
    {
      "form": "blabla",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "bla bla",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "bla bla bla",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "bla-bla-bla",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "blablabla",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "#",
        "3": "+",
        "pqual": "traditional",
        "pqual2": "post-1990 spelling"
      },
      "expansion": "bla-bla m (plural (traditional) bla-bla or (post-1990 spelling) bla-blas)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 4 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "blablater"
        }
      ],
      "examples": [
        {
          "english": "His speech is a pretentious blah to present banalities.",
          "text": "Son discours, c’est un blabla prétentieux pour présenter des banalités.",
          "type": "example"
        }
      ],
      "glosses": [
        "blah, chit-chat, meaningless talk intended to deceive"
      ],
      "id": "en-bla-bla-fr-noun-0pMEtLu4",
      "links": [
        [
          "blah",
          "blah"
        ],
        [
          "chit-chat",
          "chit-chat"
        ]
      ],
      "synonyms": [
        {
          "word": "baratin"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/bla.bla/"
    },
    {
      "audio": "LL-Q150 (fra)-DSwissK-bla-bla.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/75/LL-Q150_%28fra%29-DSwissK-bla-bla.wav/LL-Q150_%28fra%29-DSwissK-bla-bla.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/75/LL-Q150_%28fra%29-DSwissK-bla-bla.wav/LL-Q150_%28fra%29-DSwissK-bla-bla.wav.ogg"
    }
  ],
  "word": "bla-bla"
}

{
  "derived": [
    {
      "word": "blablater"
    }
  ],
  "etymology_text": "The word is given as onomatopoeic or possibly related to blaguer by le Trésor de la langue française.\nIt appears in the French language in 1945 and could also be a borrowing from earlier English blah.",
  "forms": [
    {
      "form": "bla-bla",
      "tags": [
        "plural",
        "traditional"
      ]
    },
    {
      "form": "bla-blas",
      "tags": [
        "error-unknown-tag",
        "plural"
      ]
    },
    {
      "form": "blabla",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "bla bla",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "bla bla bla",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "bla-bla-bla",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "blablabla",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "#",
        "3": "+",
        "pqual": "traditional",
        "pqual2": "post-1990 spelling"
      },
      "expansion": "bla-bla m (plural (traditional) bla-bla or (post-1990 spelling) bla-blas)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French 2-syllable words",
        "French countable nouns",
        "French entries with incorrect language header",
        "French lemmas",
        "French masculine nouns",
        "French multiword terms",
        "French nouns",
        "French terms with IPA pronunciation",
        "French terms with usage examples",
        "Pages with 4 entries",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "His speech is a pretentious blah to present banalities.",
          "text": "Son discours, c’est un blabla prétentieux pour présenter des banalités.",
          "type": "example"
        }
      ],
      "glosses": [
        "blah, chit-chat, meaningless talk intended to deceive"
      ],
      "links": [
        [
          "blah",
          "blah"
        ],
        [
          "chit-chat",
          "chit-chat"
        ]
      ],
      "synonyms": [
        {
          "word": "baratin"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/bla.bla/"
    },
    {
      "audio": "LL-Q150 (fra)-DSwissK-bla-bla.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/75/LL-Q150_%28fra%29-DSwissK-bla-bla.wav/LL-Q150_%28fra%29-DSwissK-bla-bla.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/75/LL-Q150_%28fra%29-DSwissK-bla-bla.wav/LL-Q150_%28fra%29-DSwissK-bla-bla.wav.ogg"
    }
  ],
  "word": "bla-bla"
}