"cog fog" meaning in English

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      "expansion": "cog fog",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "examples": [
        {
          "text": "For quotations using this term, see Citations:cog fog."
        }
      ],
      "glosses": [
        "Brain fog, cognitive disfunction."
      ],
      "id": "en-cog_fog-en-noun-1XZJJhcG",
      "links": [
        [
          "Brain fog",
          "brain fog"
        ]
      ],
      "raw_glosses": [
        "(informal) Brain fog, cognitive disfunction."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "cog fog"
}

{
  "head_templates": [
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        "1": "?"
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      "expansion": "cog fog",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "English countable nouns",
        "English entries with incorrect language header",
        "English informal terms",
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        "English nouns with unknown or uncertain plurals"
      ],
      "examples": [
        {
          "text": "For quotations using this term, see Citations:cog fog."
        }
      ],
      "glosses": [
        "Brain fog, cognitive disfunction."
      ],
      "links": [
        [
          "Brain fog",
          "brain fog"
        ]
      ],
      "raw_glosses": [
        "(informal) Brain fog, cognitive disfunction."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "cog fog"
}