"buck's night" meaning in English

{
  "forms": [
    {
      "form": "buck's nights",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "buck's night (plural buck's nights)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Australian English",
          "parents": [],
          "source": "w"
        },
        {
          "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": "1994, Amanda Midlam, Muriel's Wedding, Penguin, →ISBN, page 1:",
          "text": "The bride's mother fanned her perspiring face with a serviette and the best man, who had been drinking solidly since the buck's night, threw up noisily behind a clump of lantana in the backyard.",
          "type": "quote"
        },
        {
          "ref": "2006, Murray Engleheart, AC/DC: Maximum Rock & Roll: The Ultimate Story of the World's Greatest Rock-and-Roll Band, Harper Entertainment, published 2008, →ISBN, page 257:",
          "text": "Fort Arnott, it was a big week. He was soon to be married and a buck's night was held in his honour.",
          "type": "quote"
        },
        {
          "ref": "2011, Mark A. Bruhwiller, From Seven Hills to the Seven Seas: A Memoir of a Boy Adrift, Balboa Press, →ISBN, page 102:",
          "text": "My best man, Joe, had to be held up by his wife during the ceremony because he was still smashed after our buck's night the evening before.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A party held for a man who is about to be married."
      ],
      "id": "en-buck's_night-en-noun-Q9zVpX9L",
      "links": [
        [
          "party",
          "party"
        ],
        [
          "married",
          "married"
        ]
      ],
      "raw_glosses": [
        "(Australia) A party held for a man who is about to be married."
      ],
      "tags": [
        "Australia"
      ]
    }
  ],
  "word": "buck's night"
}

{
  "forms": [
    {
      "form": "buck's nights",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "buck's night (plural buck's nights)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Australian English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1994, Amanda Midlam, Muriel's Wedding, Penguin, →ISBN, page 1:",
          "text": "The bride's mother fanned her perspiring face with a serviette and the best man, who had been drinking solidly since the buck's night, threw up noisily behind a clump of lantana in the backyard.",
          "type": "quote"
        },
        {
          "ref": "2006, Murray Engleheart, AC/DC: Maximum Rock & Roll: The Ultimate Story of the World's Greatest Rock-and-Roll Band, Harper Entertainment, published 2008, →ISBN, page 257:",
          "text": "Fort Arnott, it was a big week. He was soon to be married and a buck's night was held in his honour.",
          "type": "quote"
        },
        {
          "ref": "2011, Mark A. Bruhwiller, From Seven Hills to the Seven Seas: A Memoir of a Boy Adrift, Balboa Press, →ISBN, page 102:",
          "text": "My best man, Joe, had to be held up by his wife during the ceremony because he was still smashed after our buck's night the evening before.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A party held for a man who is about to be married."
      ],
      "links": [
        [
          "party",
          "party"
        ],
        [
          "married",
          "married"
        ]
      ],
      "raw_glosses": [
        "(Australia) A party held for a man who is about to be married."
      ],
      "tags": [
        "Australia"
      ]
    }
  ],
  "word": "buck's night"
}