"jacko" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "laughing jackass",
        "3": "-o",
        "alt1": "(laughing) jackass"
      },
      "expansion": "(laughing) jackass + -o",
      "name": "suffix"
    }
  ],
  "etymology_text": "From (laughing) jackass + -o.",
  "forms": [
    {
      "form": "jackos",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "jacko (plural jackos)",
      "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": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -o",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Kingfishers",
          "orig": "en:Kingfishers",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "laughing kookaburra"
      ],
      "id": "en-jacko-en-noun-ymq~M62F",
      "links": [
        [
          "laughing kookaburra",
          "laughing kookaburra"
        ]
      ],
      "raw_glosses": [
        "(Australia, informal) laughing kookaburra"
      ],
      "tags": [
        "Australia",
        "informal"
      ]
    }
  ],
  "word": "jacko"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "laughing jackass",
        "3": "-o",
        "alt1": "(laughing) jackass"
      },
      "expansion": "(laughing) jackass + -o",
      "name": "suffix"
    }
  ],
  "etymology_text": "From (laughing) jackass + -o.",
  "forms": [
    {
      "form": "jackos",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "jacko (plural jackos)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Australian English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -o",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Kingfishers"
      ],
      "glosses": [
        "laughing kookaburra"
      ],
      "links": [
        [
          "laughing kookaburra",
          "laughing kookaburra"
        ]
      ],
      "raw_glosses": [
        "(Australia, informal) laughing kookaburra"
      ],
      "tags": [
        "Australia",
        "informal"
      ]
    }
  ],
  "word": "jacko"
}