"young buck" meaning in English

{
  "forms": [
    {
      "form": "young bucks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "young buck (plural young bucks)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "2005 June 17, Tom Armstrong, Marvin (comic)",
          "text": "Face it, Bernie, you're seventy-four years old ... you can't expect to be able to build a cart train as long as the young bucks.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An adventurous or high-spirited young man."
      ],
      "id": "en-young_buck-en-noun-al5rnEcV",
      "links": [
        [
          "adventurous",
          "adventurous"
        ]
      ]
    }
  ],
  "word": "young buck"
}

{
  "forms": [
    {
      "form": "young bucks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "young buck (plural young bucks)",
      "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"
      ],
      "examples": [
        {
          "ref": "2005 June 17, Tom Armstrong, Marvin (comic)",
          "text": "Face it, Bernie, you're seventy-four years old ... you can't expect to be able to build a cart train as long as the young bucks.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An adventurous or high-spirited young man."
      ],
      "links": [
        [
          "adventurous",
          "adventurous"
        ]
      ]
    }
  ],
  "word": "young buck"
}