"после дождичка в четверг" meaning in ruština

{
  "categories": [
    {
      "kind": "other",
      "name": "Ruské idiomy",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "ruština",
  "lang_code": "ru",
  "pos": "phrase",
  "pos_title": "idiom",
  "senses": [
    {
      "glosses": [
        "až naprší a uschne"
      ],
      "id": "cs-после_дождичка_в_четверг-ru-phrase-mvL6id73"
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈpos⁽ʲ⁾lʲe ˈdoʐdʲɪt͡ɕkə f‿t͡ɕɪtˈvʲerk]"
    }
  ],
  "tags": [
    "idiomatic"
  ],
  "word": "после дождичка в четверг"
}

{
  "categories": [
    "Ruské idiomy"
  ],
  "lang": "ruština",
  "lang_code": "ru",
  "pos": "phrase",
  "pos_title": "idiom",
  "senses": [
    {
      "glosses": [
        "až naprší a uschne"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈpos⁽ʲ⁾lʲe ˈdoʐdʲɪt͡ɕkə f‿t͡ɕɪtˈvʲerk]"
    }
  ],
  "tags": [
    "idiomatic"
  ],
  "word": "после дождичка в четверг"
}