"dragger-down" meaning in English

{
  "forms": [
    {
      "form": "draggers-down",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "draggers-down"
      },
      "expansion": "dragger-down (plural draggers-down)",
      "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"
        }
      ],
      "glosses": [
        "A person employed in a mill to carry heated metal from the furnace to the rollers that will shape it."
      ],
      "id": "en-dragger-down-en-noun-UYbUZTXP",
      "links": [
        [
          "mill",
          "mill"
        ],
        [
          "metal",
          "metal"
        ],
        [
          "furnace",
          "furnace"
        ],
        [
          "roller",
          "roller"
        ]
      ],
      "raw_glosses": [
        "(historical) A person employed in a mill to carry heated metal from the furnace to the rollers that will shape it."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "dragger-down"
}

{
  "forms": [
    {
      "form": "draggers-down",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "draggers-down"
      },
      "expansion": "dragger-down (plural draggers-down)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English nouns with irregular plurals",
        "English terms with historical senses"
      ],
      "glosses": [
        "A person employed in a mill to carry heated metal from the furnace to the rollers that will shape it."
      ],
      "links": [
        [
          "mill",
          "mill"
        ],
        [
          "metal",
          "metal"
        ],
        [
          "furnace",
          "furnace"
        ],
        [
          "roller",
          "roller"
        ]
      ],
      "raw_glosses": [
        "(historical) A person employed in a mill to carry heated metal from the furnace to the rollers that will shape it."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "dragger-down"
}