"frat man" meaning in English

{
  "forms": [
    {
      "form": "frat men",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "frat men"
      },
      "expansion": "frat man (plural frat men)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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": "Philippine English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Personality",
          "orig": "en:Personality",
          "parents": [
            "Mind",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "frat boy"
      ],
      "id": "en-frat_man-en-noun-jDFRRHVs",
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "frat boy",
          "frat boy"
        ]
      ],
      "raw_glosses": [
        "(Philippines, somewhat derogatory) frat boy"
      ],
      "synonyms": [
        {
          "word": "fratman"
        }
      ],
      "tags": [
        "Philippines",
        "derogatory"
      ]
    }
  ],
  "word": "frat man"
}

{
  "forms": [
    {
      "form": "frat men",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "frat men"
      },
      "expansion": "frat man (plural frat men)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English derogatory terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Philippine English",
        "en:Personality"
      ],
      "glosses": [
        "frat boy"
      ],
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "frat boy",
          "frat boy"
        ]
      ],
      "raw_glosses": [
        "(Philippines, somewhat derogatory) frat boy"
      ],
      "tags": [
        "Philippines",
        "derogatory"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "fratman"
    }
  ],
  "word": "frat man"
}