"key of the street" meaning in English

{
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      "expansion": "key of the street",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "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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      "examples": [
        {
          "ref": "1907, The Dublin Review, volume 141, page 290",
          "text": "And all his literary life Dickens had the vision of the boy who was given the \"key of the street\" when other boys are at school.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An imaginary item said to be possessed by anyone who is locked outdoors."
      ],
      "id": "en-key_of_the_street-en-noun-12cjW7wE",
      "links": [
        [
          "humorous",
          "humorous"
        ],
        [
          "lock",
          "lock"
        ],
        [
          "outdoors",
          "outdoors"
        ]
      ],
      "raw_glosses": [
        "(humorous) An imaginary item said to be possessed by anyone who is locked outdoors."
      ],
      "tags": [
        "humorous"
      ]
    }
  ],
  "word": "key of the street"
}

{
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "key of the street",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
        "English entries with incorrect language header",
        "English humorous terms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English nouns with unknown or uncertain plurals",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1907, The Dublin Review, volume 141, page 290",
          "text": "And all his literary life Dickens had the vision of the boy who was given the \"key of the street\" when other boys are at school.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An imaginary item said to be possessed by anyone who is locked outdoors."
      ],
      "links": [
        [
          "humorous",
          "humorous"
        ],
        [
          "lock",
          "lock"
        ],
        [
          "outdoors",
          "outdoors"
        ]
      ],
      "raw_glosses": [
        "(humorous) An imaginary item said to be possessed by anyone who is locked outdoors."
      ],
      "tags": [
        "humorous"
      ]
    }
  ],
  "word": "key of the street"
}