葦の髄から天井を覗くよしのずいからてんじょうをのぞく Expression Godan English jmdict 1 expressions (phrases Godan verb with 'ku' ending idiomatic expression to have a narrow view of things;to peek at the ceiling through the pith of a reed
髄ずい Noun English jmdict 1 noun (common) (futsuumeishi) botany medulla;pith 2 noun (common) (futsuumeishi) anatomy marrow