図ず星ぼしに当あたる

expression, godan verb (-ru)

hit the bull's-eye; be right on target

Used when a guess, remark, or criticism is exactly correct, often in a way that surprises or embarrasses the other person.

• 彼かれの指し摘てきは図ず星ぼしに当あたったようで、彼かの女じょは黙だまってしまった。

  His remark seemed to hit the bull's-eye, and she fell silent.

• 「もしかして、昨日きのうサボったんじゃない？」「図ず星ぼしに当あたった…」

  "Did you skip work yesterday, by any chance?" "You hit the nail on the head..."