"non de bleu" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Fautes d’orthographe en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions interjectives en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "intj",
  "pos_title": "Locution interjective",
  "senses": [
    {
      "glosses": [
        "Faute d’orthographe de nom de bleu."
      ],
      "id": "fr-non_de_bleu-fr-intj-oUypIlxO"
    }
  ],
  "sounds": [
    {
      "ipa": "\\nɔ̃ də blø\\"
    }
  ],
  "word": "non de bleu"
}

{
  "categories": [
    "Fautes d’orthographe en français",
    "Locutions interjectives en français",
    "français"
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "intj",
  "pos_title": "Locution interjective",
  "senses": [
    {
      "glosses": [
        "Faute d’orthographe de nom de bleu."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\nɔ̃ də blø\\"
    }
  ],
  "word": "non de bleu"
}