"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"
      ]
    },
    {
      "form": "百日の說法屁一つ",
      "tags": [
        "alternative",
        "kanji",
        "kyūjitai"
      ]
    }
  ],
  "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": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese proverbs",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 6 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with missing yomi",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with multiple readings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "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"
      ]
    },
    {
      "form": "百日の說法屁一つ",
      "tags": [
        "alternative",
        "kanji",
        "kyūjitai"
      ]
    }
  ],
  "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 alt parameters",
        "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 hyōgai kanji",
        "Japanese terms spelled with 一 read as ひと",
        "Japanese terms spelled with 屁 read as へ",
        "Japanese terms spelled with 日 read as にち",
        "Japanese terms spelled with 法 read as ほう",
        "Japanese terms spelled with 百 read as ひゃく",
        "Japanese terms spelled with 説 read as せつ",
        "Japanese terms with 6 kanji",
        "Japanese terms with missing yomi",
        "Japanese terms with multiple readings",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "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"
}