"do someone's dags" meaning in English

{
  "etymology_text": "From darings.",
  "head_templates": [
    {
      "args": {
        "1": "p"
      },
      "expansion": "do someone's dags pl (plural only)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English pluralia tantum",
          "parents": [
            "Pluralia tantum",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              141,
              153
            ],
            [
              178,
              192
            ]
          ],
          "ref": "1880, Our Boys' Paper, page 411:",
          "text": "\"Can you climb?\" asked Gale of Joe.\n\"Like a monkey.\"\n\"Of course,\" said Gale, drily, \"very much like a monkey.\"\n\"That's one to you; but I can do your dags.\"\n\"You can't.\"\n\"I can — anybody's dags. Look here.\"",
          "type": "quote"
        },
        {
          "bold_text_offsets": [
            [
              4,
              15
            ]
          ],
          "ref": "1914, William De Morgan, When Ghost Meets Ghost, page 575:",
          "text": "[…] do his dags for him, Billy would, if he could get at him. Wouldn't you, Billy?",
          "type": "quote"
        }
      ],
      "glosses": [
        "To defy someone by doing something that they are unable to do."
      ],
      "id": "en-do_someone's_dags-en-noun-GZ2r0uU~",
      "links": [
        [
          "defy",
          "defy"
        ]
      ],
      "raw_glosses": [
        "(UK, slang, obsolete) To defy someone by doing something that they are unable to do."
      ],
      "tags": [
        "UK",
        "obsolete",
        "plural",
        "plural-only",
        "slang"
      ]
    }
  ],
  "word": "do someone's dags"
}

{
  "etymology_text": "From darings.",
  "head_templates": [
    {
      "args": {
        "1": "p"
      },
      "expansion": "do someone's dags pl (plural only)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "British English",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English pluralia tantum",
        "English slang",
        "English terms with obsolete senses",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              141,
              153
            ],
            [
              178,
              192
            ]
          ],
          "ref": "1880, Our Boys' Paper, page 411:",
          "text": "\"Can you climb?\" asked Gale of Joe.\n\"Like a monkey.\"\n\"Of course,\" said Gale, drily, \"very much like a monkey.\"\n\"That's one to you; but I can do your dags.\"\n\"You can't.\"\n\"I can — anybody's dags. Look here.\"",
          "type": "quote"
        },
        {
          "bold_text_offsets": [
            [
              4,
              15
            ]
          ],
          "ref": "1914, William De Morgan, When Ghost Meets Ghost, page 575:",
          "text": "[…] do his dags for him, Billy would, if he could get at him. Wouldn't you, Billy?",
          "type": "quote"
        }
      ],
      "glosses": [
        "To defy someone by doing something that they are unable to do."
      ],
      "links": [
        [
          "defy",
          "defy"
        ]
      ],
      "raw_glosses": [
        "(UK, slang, obsolete) To defy someone by doing something that they are unable to do."
      ],
      "tags": [
        "UK",
        "obsolete",
        "plural",
        "plural-only",
        "slang"
      ]
    }
  ],
  "word": "do someone's dags"
}