"百日の説法屁一つ" meaning in Japanese

{
  "forms": [
    {
      "form": "百日の説法屁一つ",
      "ruby": [
        [
          "百",
          "ひゃく"
        ],
        [
          "日",
          "にち"
        ],
        [
          "説",
          "せっ"
        ],
        [
          "法",
          "ぽう"
        ],
        [
          "屁",
          "へ"
        ],
        [
          "一",
          "ひと"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "hyaku nichi no seppō he hitotsu",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proverb",
        "2": "ひゃく にち の せっぽう .へ ひとつ",
        "head": "百日の説法屁一つ"
      },
      "expansion": "百(ひゃく)日(にち)の説(せっ)法(ぽう)屁(へ)一(ひと)つ • (hyaku nichi no seppō he hitotsu)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "proverb",
  "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 wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese proverbs",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "“a hundred days of sermonizing, one fart” → a metaphor for how something that one has put great effort into can come to nothing after even a slight mistake, much as a hundred days of serious spiritual study can be lost to the winds"
      ],
      "id": "en-百日の説法屁一つ-ja-proverb-7-ONUox4",
      "links": [
        [
          "effort",
          "effort"
        ],
        [
          "come to nothing",
          "come to nothing"
        ],
        [
          "slight",
          "slight"
        ]
      ]
    }
  ],
  "word": "百日の説法屁一つ"
}

{
  "forms": [
    {
      "form": "百日の説法屁一つ",
      "ruby": [
        [
          "百",
          "ひゃく"
        ],
        [
          "日",
          "にち"
        ],
        [
          "説",
          "せっ"
        ],
        [
          "法",
          "ぽう"
        ],
        [
          "屁",
          "へ"
        ],
        [
          "一",
          "ひと"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "hyaku nichi no seppō he hitotsu",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proverb",
        "2": "ひゃく にち の せっぽう .へ ひとつ",
        "head": "百日の説法屁一つ"
      },
      "expansion": "百(ひゃく)日(にち)の説(せっ)法(ぽう)屁(へ)一(ひと)つ • (hyaku nichi no seppō he hitotsu)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "proverb",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
        "Japanese proverbs",
        "Japanese terms spelled with first grade kanji",
        "Japanese terms spelled with fourth grade kanji",
        "Japanese terms spelled with hyōgaiji kanji",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with six Han script characters"
      ],
      "glosses": [
        "“a hundred days of sermonizing, one fart” → a metaphor for how something that one has put great effort into can come to nothing after even a slight mistake, much as a hundred days of serious spiritual study can be lost to the winds"
      ],
      "links": [
        [
          "effort",
          "effort"
        ],
        [
          "come to nothing",
          "come to nothing"
        ],
        [
          "slight",
          "slight"
        ]
      ]
    }
  ],
  "word": "百日の説法屁一つ"
}