むし ふさぎの虫 LinksSentence search for ふさぎの虫Sentence search for ふさぎのむしSentence search for 塞ぎの虫Kanji details for 虫Edit in JMdict Expressions (phrases, clauses, etc.), Noun1. case of the bluesIdiomatic expression, See also 虫, from the belief that a bug inside one's body is the causeOther forms塞ぎの虫 【ふさぎのむし】 Discussions Log in to talk about this word.