"c'est du chinois" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "it’s Chinese"
      },
      "expansion": "“it’s Chinese”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "it’s Chinese"
      },
      "expansion": "Literally, “it’s Chinese”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “it’s Chinese”.",
  "forms": [
    {
      "form": "c’est du chinois",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "c’est du chinois",
      "name": "fr-phrase"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "phrase",
  "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 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "Women are all Greek to me / Do you understand? Not I.",
          "ref": "1961, Serge Gainsbourg, Les femmes c'est du chinois:",
          "text": "Les femmes c’est du chinois / Le comprenez-vous ? Moi pas.",
          "type": "quote"
        }
      ],
      "glosses": [
        "it's all Greek to me (a phrase indicating that something is impossible to understand)"
      ],
      "id": "en-c'est_du_chinois-fr-phrase-SeYP5wU2",
      "links": [
        [
          "it's all Greek to me",
          "it's all Greek to me"
        ]
      ],
      "synonyms": [
        {
          "word": "c'est de l'hébreu"
        },
        {
          "word": "c'est du russe"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/s‿ɛ dy ʃi.nwa/"
    }
  ],
  "word": "c'est du chinois"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it’s Chinese"
      },
      "expansion": "“it’s Chinese”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "it’s Chinese"
      },
      "expansion": "Literally, “it’s Chinese”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “it’s Chinese”.",
  "forms": [
    {
      "form": "c’est du chinois",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "c’est du chinois",
      "name": "fr-phrase"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "French entries with incorrect language header",
        "French idioms",
        "French lemmas",
        "French multiword terms",
        "French phrases",
        "French terms with IPA pronunciation",
        "French terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "Women are all Greek to me / Do you understand? Not I.",
          "ref": "1961, Serge Gainsbourg, Les femmes c'est du chinois:",
          "text": "Les femmes c’est du chinois / Le comprenez-vous ? Moi pas.",
          "type": "quote"
        }
      ],
      "glosses": [
        "it's all Greek to me (a phrase indicating that something is impossible to understand)"
      ],
      "links": [
        [
          "it's all Greek to me",
          "it's all Greek to me"
        ]
      ],
      "synonyms": [
        {
          "word": "c'est de l'hébreu"
        },
        {
          "word": "c'est du russe"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/s‿ɛ dy ʃi.nwa/"
    }
  ],
  "word": "c'est du chinois"
}