"quand le chat n'est pas là, les souris dansent" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "when the cat isn't there, the mice dance"
      },
      "expansion": "“when the cat isn't there, the mice dance”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "when the cat isn't there, the mice dance"
      },
      "expansion": "Literally, “when the cat isn't there, the mice dance”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “when the cat isn't there, the mice dance”.",
  "forms": [
    {
      "form": "quand le chat n’est pas là",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "les souris dansent",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "quand le chat n'est pas là, les souris dansent"
      },
      "expansion": "quand le chat n’est pas là, les souris dansent",
      "name": "fr-proverb"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "proverb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "French proverbs",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "when the cat's away the mice will play"
      ],
      "id": "en-quand_le_chat_n'est_pas_là,_les_souris_dansent-fr-proverb-mZwcElxO",
      "links": [
        [
          "when the cat's away the mice will play",
          "when the cat's away the mice will play"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) when the cat's away the mice will play"
      ],
      "related": [
        {
          "word": "le chat parti, les souris dansent"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kɑ̃ l(ə) ʃa n‿ɛ pa la | le su.ʁi dɑ̃s/"
    },
    {
      "ipa": "/kɑ̃ l(ə) ʃa n‿ɛ pɑ la | le su.ʁi dɑ̃s/"
    },
    {
      "audio": "Fr-quand le chat n'est pas là, les souris dansent.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/4/4e/Fr-quand_le_chat_n%27est_pas_l%C3%A0%2C_les_souris_dansent.ogg/Fr-quand_le_chat_n%27est_pas_l%C3%A0%2C_les_souris_dansent.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/4/4e/Fr-quand_le_chat_n%27est_pas_l%C3%A0%2C_les_souris_dansent.ogg",
      "text": "Listen audio"
    }
  ],
  "word": "quand le chat n'est pas là, les souris dansent"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "when the cat isn't there, the mice dance"
      },
      "expansion": "“when the cat isn't there, the mice dance”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "when the cat isn't there, the mice dance"
      },
      "expansion": "Literally, “when the cat isn't there, the mice dance”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “when the cat isn't there, the mice dance”.",
  "forms": [
    {
      "form": "quand le chat n’est pas là",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "les souris dansent",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "quand le chat n'est pas là, les souris dansent"
      },
      "expansion": "quand le chat n’est pas là, les souris dansent",
      "name": "fr-proverb"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "proverb",
  "related": [
    {
      "word": "le chat parti, les souris dansent"
    }
  ],
  "senses": [
    {
      "categories": [
        "French entries with incorrect language header",
        "French idioms",
        "French lemmas",
        "French multiword terms",
        "French proverbs",
        "French terms with IPA pronunciation",
        "French terms with audio links"
      ],
      "glosses": [
        "when the cat's away the mice will play"
      ],
      "links": [
        [
          "when the cat's away the mice will play",
          "when the cat's away the mice will play"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) when the cat's away the mice will play"
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kɑ̃ l(ə) ʃa n‿ɛ pa la | le su.ʁi dɑ̃s/"
    },
    {
      "ipa": "/kɑ̃ l(ə) ʃa n‿ɛ pɑ la | le su.ʁi dɑ̃s/"
    },
    {
      "audio": "Fr-quand le chat n'est pas là, les souris dansent.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/4/4e/Fr-quand_le_chat_n%27est_pas_l%C3%A0%2C_les_souris_dansent.ogg/Fr-quand_le_chat_n%27est_pas_l%C3%A0%2C_les_souris_dansent.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/4/4e/Fr-quand_le_chat_n%27est_pas_l%C3%A0%2C_les_souris_dansent.ogg",
      "text": "Listen audio"
    }
  ],
  "word": "quand le chat n'est pas là, les souris dansent"
}