"jack jumper" meaning in English

{
  "forms": [
    {
      "form": "jack jumpers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "jack jumper (plural jack jumpers)",
      "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": "lifeform",
          "langcode": "en",
          "name": "Ants",
          "orig": "en:Ants",
          "parents": [
            "Hymenopterans",
            "Insects",
            "Arthropods",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2004, Nicholas Shakespeare, In Tasmania, Harvill Press, p. 261",
          "text": "Glancing back at Hordern's gravestone, I saw that the absent metal letters exposed a pattern of nail holes like woodworm. A jack-jumper ant crawled over his age – he was 63 – and disappeared into the nettles."
        }
      ],
      "glosses": [
        "Any of various small species of ant of the genus Myrmecia, often capable of jumping and having a painful sting; a jumper. (Also used attributively.)"
      ],
      "id": "en-jack_jumper-en-noun-WCrRAIgL",
      "links": [
        [
          "ant",
          "ant"
        ],
        [
          "Myrmecia",
          "Myrmecia#Translingual"
        ],
        [
          "sting",
          "sting"
        ],
        [
          "jumper",
          "jumper"
        ]
      ],
      "raw_glosses": [
        "(Australia) Any of various small species of ant of the genus Myrmecia, often capable of jumping and having a painful sting; a jumper. (Also used attributively.)"
      ],
      "tags": [
        "Australia"
      ]
    }
  ],
  "word": "jack jumper"
}

{
  "forms": [
    {
      "form": "jack jumpers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "jack jumper (plural jack jumpers)",
      "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",
        "en:Ants"
      ],
      "examples": [
        {
          "ref": "2004, Nicholas Shakespeare, In Tasmania, Harvill Press, p. 261",
          "text": "Glancing back at Hordern's gravestone, I saw that the absent metal letters exposed a pattern of nail holes like woodworm. A jack-jumper ant crawled over his age – he was 63 – and disappeared into the nettles."
        }
      ],
      "glosses": [
        "Any of various small species of ant of the genus Myrmecia, often capable of jumping and having a painful sting; a jumper. (Also used attributively.)"
      ],
      "links": [
        [
          "ant",
          "ant"
        ],
        [
          "Myrmecia",
          "Myrmecia#Translingual"
        ],
        [
          "sting",
          "sting"
        ],
        [
          "jumper",
          "jumper"
        ]
      ],
      "raw_glosses": [
        "(Australia) Any of various small species of ant of the genus Myrmecia, often capable of jumping and having a painful sting; a jumper. (Also used attributively.)"
      ],
      "tags": [
        "Australia"
      ]
    }
  ],
  "word": "jack jumper"
}