乳にゅう臭しゅう児じ

noun

greenhorn; fledgling; novice

Derogatory or teasing term for an inexperienced young person, likening them to a child who still smells of milk. Somewhat literary or old-fashioned; not common in everyday conversation.

• 彼かれはまだ乳にゅう臭しゅう児じだから、大だい事じな仕し事ごとは任まかせられない。

  He's still a greenhorn, so we can't entrust him with important work.

• そんな乳にゅう臭しゅう児じに何なにがわかるというのか。

  What could such a fledgling possibly understand?