"brain fag" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "tiredness of young males"
      },
      "expansion": "(tiredness of young males):",
      "name": "sense"
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  ],
  "etymology_text": "* (tiredness of young males): possibly originates from West Africa",
  "head_templates": [
    {
      "args": {
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      "expansion": "brain fag (uncountable)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "56 44",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A condition to which male high school and college students are prone consisting of difficulty in concentrating, mild forgetfulness, and difficulty in maintaining a train of thought, arising from \"too much thinking\". Physical symptoms can manifest as well."
      ],
      "id": "en-brain_fag-en-noun-NKls1JfM",
      "synonyms": [
        {
          "_dis1": "69 31",
          "sense": "tiredness of young males",
          "word": "brain tiredness"
        },
        {
          "_dis1": "93 7",
          "word": "brain-fag"
        }
      ],
      "tags": [
        "uncountable"
      ]
    },
    {
      "glosses": [
        "cerebropathy"
      ],
      "id": "en-brain_fag-en-noun-nxh3rIKN",
      "links": [
        [
          "cerebropathy",
          "cerebropathy"
        ]
      ],
      "synonyms": [
        {
          "_dis1": "10 90",
          "sense": "cerebropathy",
          "word": "cerebropathy"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "wikipedia": [
    "brain fag"
  ],
  "word": "brain fag"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English uncountable nouns"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "tiredness of young males"
      },
      "expansion": "(tiredness of young males):",
      "name": "sense"
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  ],
  "etymology_text": "* (tiredness of young males): possibly originates from West Africa",
  "head_templates": [
    {
      "args": {
        "1": "-"
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      "expansion": "brain fag (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A condition to which male high school and college students are prone consisting of difficulty in concentrating, mild forgetfulness, and difficulty in maintaining a train of thought, arising from \"too much thinking\". Physical symptoms can manifest as well."
      ],
      "tags": [
        "uncountable"
      ]
    },
    {
      "glosses": [
        "cerebropathy"
      ],
      "links": [
        [
          "cerebropathy",
          "cerebropathy"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "tiredness of young males",
      "word": "brain tiredness"
    },
    {
      "sense": "cerebropathy",
      "word": "cerebropathy"
    },
    {
      "word": "brain-fag"
    }
  ],
  "wikipedia": [
    "brain fag"
  ],
  "word": "brain fag"
}