"climbing boy" meaning in English

{
  "etymology_text": "From the fact that boys were often sold into labor to “climb” chimneys in the 1800s.",
  "forms": [
    {
      "form": "climbing boys",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "climbing boy (plural climbing boys)",
      "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": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A small child employed by a chimney sweep to ascend and clean flues."
      ],
      "id": "en-climbing_boy-en-noun-HdEUkhtC",
      "links": [
        [
          "chimney sweep",
          "chimney sweep"
        ],
        [
          "flue",
          "flue"
        ]
      ],
      "raw_glosses": [
        "(historical) A small child employed by a chimney sweep to ascend and clean flues."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "climbing boy"
}

{
  "etymology_text": "From the fact that boys were often sold into labor to “climb” chimneys in the 1800s.",
  "forms": [
    {
      "form": "climbing boys",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "climbing boy (plural climbing boys)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with historical senses",
        "English terms with non-redundant non-automated sortkeys",
        "en:People"
      ],
      "glosses": [
        "A small child employed by a chimney sweep to ascend and clean flues."
      ],
      "links": [
        [
          "chimney sweep",
          "chimney sweep"
        ],
        [
          "flue",
          "flue"
        ]
      ],
      "raw_glosses": [
        "(historical) A small child employed by a chimney sweep to ascend and clean flues."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "climbing boy"
}