"笑止千万" meaning in Japanese

{
  "forms": [
    {
      "form": "笑止千万",
      "ruby": [
        [
          "笑",
          "しょう"
        ],
        [
          "止",
          "し"
        ],
        [
          "千",
          "せん"
        ],
        [
          "万",
          "ばん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "shōshisenban",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "seusisenban",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "せうしせんばん",
      "roman": "seusisenban",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "しょうしせんばん",
        "hhira": "せうしせんばん"
      },
      "expansion": "笑(しょう)止(し)千(せん)万(ばん) • (shōshisenban) ^(←せうしせんばん (seusisenban)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 4 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with multiple readings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese yojijukugo",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "extreme ridicule"
      ],
      "id": "en-笑止千万-ja-noun-gA2wn5mB",
      "links": [
        [
          "extreme",
          "extreme"
        ],
        [
          "ridicule",
          "ridicule"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "しょーしせんばん"
    },
    {
      "ipa": "[ɕo̞ːɕisẽ̞mbã̠ɴ]"
    }
  ],
  "word": "笑止千万"
}

{
  "forms": [
    {
      "form": "笑止千万",
      "ruby": [
        [
          "笑",
          "しょう"
        ],
        [
          "止",
          "し"
        ],
        [
          "千",
          "せん"
        ],
        [
          "万",
          "ばん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "shōshisenban",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "seusisenban",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "せうしせんばん",
      "roman": "seusisenban",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "しょうしせんばん",
        "hhira": "せうしせんばん"
      },
      "expansion": "笑(しょう)止(し)千(せん)万(ばん) • (shōshisenban) ^(←せうしせんばん (seusisenban)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms spelled with first grade kanji",
        "Japanese terms spelled with fourth grade kanji",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms with 4 kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with multiple readings",
        "Japanese terms with redundant sortkeys",
        "Japanese yojijukugo",
        "Pages with 1 entry"
      ],
      "glosses": [
        "extreme ridicule"
      ],
      "links": [
        [
          "extreme",
          "extreme"
        ],
        [
          "ridicule",
          "ridicule"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "しょーしせんばん"
    },
    {
      "ipa": "[ɕo̞ːɕisẽ̞mbã̠ɴ]"
    }
  ],
  "word": "笑止千万"
}

{
  "called_from": "parser/304",
  "msg": "HTML tag <span> not properly closed",
  "path": [
    "笑止千万"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "笑止千万",
  "trace": "started on line 2, detected on line 2"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "笑止千万"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "笑止千万",
  "trace": ""
}