"いないいないばあ" meaning in Japanese

{
  "etymology_templates": [
    {
      "args": {
        "1": "いない",
        "2": "",
        "3": "いない",
        "4": "",
        "5": "ばあ"
      },
      "expansion": "いない (inai) + いない (inai) + ばあ (bā)",
      "name": "com-ja"
    },
    {
      "args": {
        "1": "(hiding oneself) I'm not here — I'm not here — (showing oneself) baa!"
      },
      "expansion": "“(hiding oneself) I'm not here — I'm not here — (showing oneself) baa!”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "(hiding oneself) I'm not here — I'm not here — (showing oneself) baa!"
      },
      "expansion": "Literally, “(hiding oneself) I'm not here — I'm not here — (showing oneself) baa!”",
      "name": "lit"
    }
  ],
  "etymology_text": "いない (inai) + いない (inai) + ばあ (bā). Literally, “(hiding oneself) I'm not here — I'm not here — (showing oneself) baa!”",
  "forms": [
    {
      "form": "inai-inai-bā",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "winaiwinaibaa",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ゐないゐないばあ",
      "roman": "winaiwinaibaa",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "interjection",
        "2": "いない-いない-ばあ",
        "hhira": "ゐないゐないばあ"
      },
      "expansion": "いないいないばあ • (inai-inai-bā) ^(←ゐないゐないばあ (winaiwinaibaa)?)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "peek-a-boo"
      ],
      "id": "en-いないいないばあ-ja-intj-oEeqcLWl",
      "links": [
        [
          "peek-a-boo",
          "peek-a-boo"
        ]
      ],
      "wikipedia": [
        "ja:いないいないばあ"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ina̠iːna̠iba̠ː]"
    }
  ],
  "word": "いないいないばあ"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "いない",
        "2": "",
        "3": "いない",
        "4": "",
        "5": "ばあ"
      },
      "expansion": "いない (inai) + いない (inai) + ばあ (bā)",
      "name": "com-ja"
    },
    {
      "args": {
        "1": "(hiding oneself) I'm not here — I'm not here — (showing oneself) baa!"
      },
      "expansion": "“(hiding oneself) I'm not here — I'm not here — (showing oneself) baa!”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "(hiding oneself) I'm not here — I'm not here — (showing oneself) baa!"
      },
      "expansion": "Literally, “(hiding oneself) I'm not here — I'm not here — (showing oneself) baa!”",
      "name": "lit"
    }
  ],
  "etymology_text": "いない (inai) + いない (inai) + ばあ (bā). Literally, “(hiding oneself) I'm not here — I'm not here — (showing oneself) baa!”",
  "forms": [
    {
      "form": "inai-inai-bā",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "winaiwinaibaa",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ゐないゐないばあ",
      "roman": "winaiwinaibaa",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "interjection",
        "2": "いない-いない-ばあ",
        "hhira": "ゐないゐないばあ"
      },
      "expansion": "いないいないばあ • (inai-inai-bā) ^(←ゐないゐないばあ (winaiwinaibaa)?)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "Japanese compound terms",
        "Japanese entries with incorrect language header",
        "Japanese hiragana",
        "Japanese interjections",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese terms historically spelled with ゐ",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with redundant sortkeys"
      ],
      "glosses": [
        "peek-a-boo"
      ],
      "links": [
        [
          "peek-a-boo",
          "peek-a-boo"
        ]
      ],
      "wikipedia": [
        "ja:いないいないばあ"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ina̠iːna̠iba̠ː]"
    }
  ],
  "word": "いないいないばあ"
}