"al tuntún" meaning in Spanish

{
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "adverb"
      },
      "expansion": "al tuntún",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "Backward and rude in everything, our criminals kill with slabs, haphazardly, without preparing ambushes, or writing subtle letters",
          "ref": "1910, Luis Bonafoux, Gotas de Sangre",
          "text": "Atrasados y toscos en todo, nuestras criminales matan con planchas, al tuntún, sin preparar emboscadas, ni escribir cartas sutiles",
          "type": "quotation"
        }
      ],
      "glosses": [
        "haphazardly, any old how"
      ],
      "id": "en-al_tuntún-es-adv-RsWINsdC",
      "links": [
        [
          "haphazardly",
          "haphazardly"
        ],
        [
          "any old how",
          "any old how"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) haphazardly, any old how"
      ],
      "synonyms": [
        {
          "word": "a voleo"
        },
        {
          "word": "sin ton ni son"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "al tuntún"
}

{
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "adverb"
      },
      "expansion": "al tuntún",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Quotation templates to be cleaned",
        "Spanish adverbs",
        "Spanish entries with incorrect language header",
        "Spanish idioms",
        "Spanish lemmas",
        "Spanish multiword terms",
        "Spanish terms with quotations"
      ],
      "examples": [
        {
          "english": "Backward and rude in everything, our criminals kill with slabs, haphazardly, without preparing ambushes, or writing subtle letters",
          "ref": "1910, Luis Bonafoux, Gotas de Sangre",
          "text": "Atrasados y toscos en todo, nuestras criminales matan con planchas, al tuntún, sin preparar emboscadas, ni escribir cartas sutiles",
          "type": "quotation"
        }
      ],
      "glosses": [
        "haphazardly, any old how"
      ],
      "links": [
        [
          "haphazardly",
          "haphazardly"
        ],
        [
          "any old how",
          "any old how"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) haphazardly, any old how"
      ],
      "synonyms": [
        {
          "word": "a voleo"
        },
        {
          "word": "sin ton ni son"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "al tuntún"
}