いものにえたもごぞんじない

芋の煮えたもご存じない

表記・読み：芋の煮えたも御存じない・いものにえたもごぞんじない

1. 1

   being ignorant of the ways of the world; knowing nothing; not being able to tell if a yam is boiled or not

   expressions (phrases, clauses, etc.)idiomatic expression