"honest John" meaning in English

{
  "forms": [
    {
      "form": "honest Johns",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "honest John (plural honest Johns)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2020 September 1, Tom Lamont, “The butcher's shop that lasted 300 years (give or take)”, in The Guardian:",
          "text": "The high street was a place of utility once, with concentrated amenities. It was a place of wildly fluctuating codes of behaviour and scruples. Particular smells. Finicky proprietors. Honest johns. Crooks.",
          "type": "quote"
        }
      ],
      "glosses": [
        "An ordinary, honest, member of the public"
      ],
      "id": "en-honest_John-en-noun-opNsg~oq",
      "raw_glosses": [
        "(idiomatic) An ordinary, honest, member of the public"
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "honest John"
}

{
  "forms": [
    {
      "form": "honest Johns",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "honest John (plural honest Johns)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2020 September 1, Tom Lamont, “The butcher's shop that lasted 300 years (give or take)”, in The Guardian:",
          "text": "The high street was a place of utility once, with concentrated amenities. It was a place of wildly fluctuating codes of behaviour and scruples. Particular smells. Finicky proprietors. Honest johns. Crooks.",
          "type": "quote"
        }
      ],
      "glosses": [
        "An ordinary, honest, member of the public"
      ],
      "raw_glosses": [
        "(idiomatic) An ordinary, honest, member of the public"
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "honest John"
}