"rattle can" meaning in English

{
  "forms": [
    {
      "form": "rattle cans",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rattle can (plural rattle cans)",
      "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"
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          "source": "w"
        },
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          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2007, Dennis W. Parks, “Rattle can versus automotive paint versus powder coating”, in How to Build a Cheap Hot Rod, page 55:",
          "text": "The main drawback of using a rattle can is that you may not be able to obtain an exact match to the paint that you are using on the rest of the vehicle, but steel wheels are not usually painted the same color as the car anyway.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of spray can"
      ],
      "id": "en-rattle_can-en-noun-WQplhoJX",
      "links": [
        [
          "spray can",
          "spray can#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "spray can"
        },
        {
          "word": "rattlecan"
        },
        {
          "word": "rattle-can"
        }
      ]
    }
  ],
  "word": "rattle can"
}

{
  "forms": [
    {
      "form": "rattle cans",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rattle can (plural rattle cans)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
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        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2007, Dennis W. Parks, “Rattle can versus automotive paint versus powder coating”, in How to Build a Cheap Hot Rod, page 55:",
          "text": "The main drawback of using a rattle can is that you may not be able to obtain an exact match to the paint that you are using on the rest of the vehicle, but steel wheels are not usually painted the same color as the car anyway.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of spray can"
      ],
      "links": [
        [
          "spray can",
          "spray can#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
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          "word": "spray can"
        }
      ]
    }
  ],
  "synonyms": [
    {
      "word": "rattlecan"
    },
    {
      "word": "rattle-can"
    }
  ],
  "word": "rattle can"
}