"jak rak świśnie a ryba piśnie" meaning in Polish

{
  "etymology_templates": [
    {
      "args": {
        "1": "when a crawfish swishes and a fish whistles"
      },
      "expansion": "“when a crawfish swishes and a fish whistles”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "when a crawfish swishes and a fish whistles"
      },
      "expansion": "Literally, “when a crawfish swishes and a fish whistles”",
      "name": "lit"
    },
    {
      "args": {
        "1": "ru",
        "2": "когда рак на горе свистнет"
      },
      "expansion": "Russian когда рак на горе свистнет (kogda rak na gore svistnet)",
      "name": "cog"
    },
    {
      "args": {
        "1": "be",
        "2": "калі рак свісне"
      },
      "expansion": "Belarusian калі рак свісне (kali rak svisnje)",
      "name": "cog"
    }
  ],
  "etymology_text": "Literally, “when a crawfish swishes and a fish whistles”. Compare Russian когда рак на горе свистнет (kogda rak na gore svistnet), Belarusian калі рак свісне (kali rak svisnje).",
  "head_templates": [
    {
      "args": {
        "1": "pl",
        "2": "proverb",
        "head": "jak rak świśnie a ryba piśnie"
      },
      "expansion": "jak rak świśnie a ryba piśnie",
      "name": "head"
    }
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "proverb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Polish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Polish proverbs",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "cold day in Hell, when pigs fly (time of occurrence of an event that will never happen)"
      ],
      "id": "en-jak_rak_świśnie_a_ryba_piśnie-pl-proverb-4rTKZvGs",
      "links": [
        [
          "cold day in Hell",
          "cold day in Hell"
        ],
        [
          "when pigs fly",
          "when pigs fly"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) cold day in Hell, when pigs fly (time of occurrence of an event that will never happen)"
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/jak rak ˈɕfiɕ.ɲɛ a ˈrɨ.ba ˈpiɕ.ɲɛ/"
    },
    {
      "rhymes": "-iɕɲɛ"
    }
  ],
  "word": "jak rak świśnie a ryba piśnie"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "when a crawfish swishes and a fish whistles"
      },
      "expansion": "“when a crawfish swishes and a fish whistles”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "when a crawfish swishes and a fish whistles"
      },
      "expansion": "Literally, “when a crawfish swishes and a fish whistles”",
      "name": "lit"
    },
    {
      "args": {
        "1": "ru",
        "2": "когда рак на горе свистнет"
      },
      "expansion": "Russian когда рак на горе свистнет (kogda rak na gore svistnet)",
      "name": "cog"
    },
    {
      "args": {
        "1": "be",
        "2": "калі рак свісне"
      },
      "expansion": "Belarusian калі рак свісне (kali rak svisnje)",
      "name": "cog"
    }
  ],
  "etymology_text": "Literally, “when a crawfish swishes and a fish whistles”. Compare Russian когда рак на горе свистнет (kogda rak na gore svistnet), Belarusian калі рак свісне (kali rak svisnje).",
  "head_templates": [
    {
      "args": {
        "1": "pl",
        "2": "proverb",
        "head": "jak rak świśnie a ryba piśnie"
      },
      "expansion": "jak rak świśnie a ryba piśnie",
      "name": "head"
    }
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "proverb",
  "senses": [
    {
      "categories": [
        "Polish entries with incorrect language header",
        "Polish idioms",
        "Polish lemmas",
        "Polish multiword terms",
        "Polish proverbs",
        "Polish rhyming phrases",
        "Polish terms with IPA pronunciation",
        "Polish terms with audio links",
        "Rhymes:Polish/iɕɲɛ"
      ],
      "glosses": [
        "cold day in Hell, when pigs fly (time of occurrence of an event that will never happen)"
      ],
      "links": [
        [
          "cold day in Hell",
          "cold day in Hell"
        ],
        [
          "when pigs fly",
          "when pigs fly"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) cold day in Hell, when pigs fly (time of occurrence of an event that will never happen)"
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/jak rak ˈɕfiɕ.ɲɛ a ˈrɨ.ba ˈpiɕ.ɲɛ/"
    },
    {
      "rhymes": "-iɕɲɛ"
    }
  ],
  "word": "jak rak świśnie a ryba piśnie"
}