"hardest-core" meaning in All languages combined

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "superlative adjective"
      },
      "expansion": "hardest-core",
      "name": "head"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
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          "parents": [],
          "source": "w"
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          "parents": [],
          "source": "w"
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      "examples": [
        {
          "ref": "2012 March 30, Joe Levy, “Rockers at Sea”, in The New York Times:",
          "text": "Still, artists and managers insist the real draw is the same as for the fans: the once-in-a-lifetime nature of the event. “You’re playing to a couple of thousand people who love what you do, the hardest-core fans,” Kid Rock said.",
          "type": "quote"
        }
      ],
      "form_of": [
        {
          "extra": "most hardcore",
          "word": "hardcore"
        }
      ],
      "glosses": [
        "superlative form of hardcore: most hardcore"
      ],
      "id": "en-hardest-core-en-adj-FM83v2Kw",
      "links": [
        [
          "hardcore",
          "hardcore#English"
        ]
      ],
      "tags": [
        "form-of",
        "superlative"
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  ],
  "word": "hardest-core"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "superlative adjective"
      },
      "expansion": "hardest-core",
      "name": "head"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
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      "examples": [
        {
          "ref": "2012 March 30, Joe Levy, “Rockers at Sea”, in The New York Times:",
          "text": "Still, artists and managers insist the real draw is the same as for the fans: the once-in-a-lifetime nature of the event. “You’re playing to a couple of thousand people who love what you do, the hardest-core fans,” Kid Rock said.",
          "type": "quote"
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      ],
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          "extra": "most hardcore",
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      ],
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        "superlative form of hardcore: most hardcore"
      ],
      "links": [
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          "hardcore",
          "hardcore#English"
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        "form-of",
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  "word": "hardest-core"
}