"la la la" meaning in English

{
  "head_templates": [
    {
      "args": {},
      "expansion": "la la la",
      "name": "en-interjection"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English 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": [
        {
          "ref": "2013, “La La La”, Naughty Boy (lyrics):",
          "text": "I'm turning up the volume when you speak 'Cause if my heart can't stop it I find a way to block it, I go la la, la la la la la",
          "type": "quote"
        },
        {
          "ref": "2011, Paul Johnson, Choose Life, page 14:",
          "text": "fingers in ears, la la la, I can't hear you, la la la, I can't hear you",
          "type": "quote"
        }
      ],
      "glosses": [
        "said loudly to prevent the speaker from hearing something he/she doesn't want to hear"
      ],
      "id": "en-la_la_la-en-intj-fEwfw5yM"
    }
  ],
  "word": "la la la"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "la la la",
      "name": "en-interjection"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English interjections",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2013, “La La La”, Naughty Boy (lyrics):",
          "text": "I'm turning up the volume when you speak 'Cause if my heart can't stop it I find a way to block it, I go la la, la la la la la",
          "type": "quote"
        },
        {
          "ref": "2011, Paul Johnson, Choose Life, page 14:",
          "text": "fingers in ears, la la la, I can't hear you, la la la, I can't hear you",
          "type": "quote"
        }
      ],
      "glosses": [
        "said loudly to prevent the speaker from hearing something he/she doesn't want to hear"
      ]
    }
  ],
  "word": "la la la"
}