ひゃくにちのせっぽうへひとつ

Japanese

For pronunciation and definitions of ひゃくにちのせっぽうへひとつ – see the following entry.

【百日の説法屁一つ】 [proverb] “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

(This term, ひゃくにちのせっぽうへひとつ, is the hiragana spelling of the above term.)