"blah blah" meaning in All languages combined

{
  "categories": [
    {
      "kind": "other",
      "name": "有1個詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語感嘆詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語詞元",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "英語",
  "lang_code": "en",
  "pos": "intj",
  "pos_title": "感歎詞",
  "senses": [
    {
      "alt_of": [
        {
          "word": "blah blah blah"
        }
      ],
      "glosses": [
        "blah blah blah的另一種寫法"
      ],
      "id": "zh-blah_blah-en-intj-yfNlPJPU",
      "tags": [
        "alt-of"
      ]
    }
  ],
  "word": "blah blah"
}

{
  "categories": [
    "有1個詞條的頁面",
    "有詞條的頁面",
    "英語感嘆詞",
    "英語詞元"
  ],
  "lang": "英語",
  "lang_code": "en",
  "pos": "intj",
  "pos_title": "感歎詞",
  "senses": [
    {
      "alt_of": [
        {
          "word": "blah blah blah"
        }
      ],
      "glosses": [
        "blah blah blah的另一種寫法"
      ],
      "tags": [
        "alt-of"
      ]
    }
  ],
  "word": "blah blah"
}