Definition of 百日の説法屁一つ (ひゃくにちのせっぽうへひとつ)

ひゃくにせっぽうひと

百日の説法屁一つ

ひゃくにちのせっぽうへひとつ

hyakunichinoseppouhehitotsu

expression
single mistake which ruins all one's hard work, one blunder rendering a long period of effort useless, one fart in a hundred days of sermons(idiom , proverb)
Related Kanji
hundred
day, sun, Japan, counter for days
opinion, theory, explanation, rumor
method, law, rule, principle, model, system
fart, passing gas
one, one radical (no.1)