愚ぐの骨こっ頂ちょうぐのこっちょうじ字FuriganaMeanings1expression, nounthe height of folly; sheer stupidityidiomatic expression›Idiomatic expression used to criticize an action or idea as extremely foolish. Often used in formal or written contexts.そんな計けい画かくを進すすめるなんて愚ぐの骨こっ頂ちょう
