水みずを打うったよう

expression, na-adjective

suddenly quiet; dead silent

Describes a situation where a noisy place or crowd suddenly becomes completely silent, as if water had been poured over it. Often used with なる.

• 先せん生せいが入はいってくると、教きょう室しつは水みずを打うったように静しずかになった。

  When the teacher entered, the classroom became dead silent.

• その一ひと言ことで、会かい場じょうは水みずを打うったようになった。

  At that one remark, the hall fell suddenly quiet.