芋の煮えたもご存じない

いものにえたもごぞんじないimononietamogozonjinai

expression

  1. being ignorant of the ways of the world
  2. knowing nothing
  3. not being able to tell if a yam is boiled or not

Kanji in this word

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences