"double sawbuck" meaning in English

{
  "etymology_text": "The number 20 is written XX in Roman numerals; this resembles two of the sawbucks used for cutting wood.",
  "forms": [
    {
      "form": "double sawbucks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "double sawbuck (plural double sawbucks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1953, Raymond Chandler, The Long Goodbye, Penguin, published 2010, page 14",
          "text": "I got five double sawbucks out of my wallet and dropped them in front of him.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Twenty dollars; a twenty-dollar bill."
      ],
      "id": "en-double_sawbuck-en-noun-o3znvRQR",
      "links": [
        [
          "Twenty",
          "twenty"
        ],
        [
          "bill",
          "bill"
        ]
      ],
      "raw_glosses": [
        "(US, slang) Twenty dollars; a twenty-dollar bill."
      ],
      "tags": [
        "US",
        "slang"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "27 73",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A twenty-year prison sentence."
      ],
      "id": "en-double_sawbuck-en-noun-RHBErhm6",
      "links": [
        [
          "prison",
          "prison"
        ],
        [
          "sentence",
          "sentence"
        ]
      ],
      "raw_glosses": [
        "(US, slang) A twenty-year prison sentence."
      ],
      "tags": [
        "US",
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-double sawbuck.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b9/En-au-double_sawbuck.ogg/En-au-double_sawbuck.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/b/b9/En-au-double_sawbuck.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "double sawbuck"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms with audio links"
  ],
  "etymology_text": "The number 20 is written XX in Roman numerals; this resembles two of the sawbucks used for cutting wood.",
  "forms": [
    {
      "form": "double sawbucks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "double sawbuck (plural double sawbucks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "American English",
        "English slang",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1953, Raymond Chandler, The Long Goodbye, Penguin, published 2010, page 14",
          "text": "I got five double sawbucks out of my wallet and dropped them in front of him.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Twenty dollars; a twenty-dollar bill."
      ],
      "links": [
        [
          "Twenty",
          "twenty"
        ],
        [
          "bill",
          "bill"
        ]
      ],
      "raw_glosses": [
        "(US, slang) Twenty dollars; a twenty-dollar bill."
      ],
      "tags": [
        "US",
        "slang"
      ]
    },
    {
      "categories": [
        "American English",
        "English slang"
      ],
      "glosses": [
        "A twenty-year prison sentence."
      ],
      "links": [
        [
          "prison",
          "prison"
        ],
        [
          "sentence",
          "sentence"
        ]
      ],
      "raw_glosses": [
        "(US, slang) A twenty-year prison sentence."
      ],
      "tags": [
        "US",
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-double sawbuck.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b9/En-au-double_sawbuck.ogg/En-au-double_sawbuck.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/b/b9/En-au-double_sawbuck.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "double sawbuck"
}