"good coin" meaning in English

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      "expansion": "good coin (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "examples": [
        {
          "ref": "2004 August 26, Leslie Feinberg, “Survival with Setbacks”, in Workers World",
          "text": "A much more thorough examination of this period is essential, and no glib answers should be accepted as good coin.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Something genuine or trustworthy."
      ],
      "id": "en-good_coin-en-noun-oY5f1VeQ",
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "good coin"
}

{
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      "expansion": "good coin (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "examples": [
        {
          "ref": "2004 August 26, Leslie Feinberg, “Survival with Setbacks”, in Workers World",
          "text": "A much more thorough examination of this period is essential, and no glib answers should be accepted as good coin.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Something genuine or trustworthy."
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "good coin"
}