"red rattler" meaning in English

{
  "forms": [
    {
      "form": "red rattlers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "red rattler (plural red rattlers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Australian English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Transport",
          "orig": "en:Transport",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Any of various red coloured passenger trains formerly operating in eastern mainland Australia."
      ],
      "id": "en-red_rattler-en-noun-5Y8ylPOY",
      "links": [
        [
          "transport",
          "transport"
        ]
      ],
      "raw_glosses": [
        "(Australia, transport, obsolete) Any of various red coloured passenger trains formerly operating in eastern mainland Australia."
      ],
      "tags": [
        "Australia",
        "obsolete"
      ],
      "topics": [
        "transport"
      ]
    }
  ],
  "word": "red rattler"
}

{
  "forms": [
    {
      "form": "red rattlers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "red rattler (plural red rattlers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Australian English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with obsolete senses",
        "en:Transport"
      ],
      "glosses": [
        "Any of various red coloured passenger trains formerly operating in eastern mainland Australia."
      ],
      "links": [
        [
          "transport",
          "transport"
        ]
      ],
      "raw_glosses": [
        "(Australia, transport, obsolete) Any of various red coloured passenger trains formerly operating in eastern mainland Australia."
      ],
      "tags": [
        "Australia",
        "obsolete"
      ],
      "topics": [
        "transport"
      ]
    }
  ],
  "word": "red rattler"
}