目めを真まん円まるにする

expression, suru verb (irregular)

to be very surprised; to open one's eyes wide in astonishment

Describes a sudden, visible reaction of surprise where the eyes become round. Often used in narrative or descriptive contexts.

• 彼かの女じょはその知しらせを聞きいて目めを真まん円まるにした。

  She opened her eyes wide in surprise at the news.

• 子こ供どもたちはマジックショーで目めを真まん円まるにしていた。

  The children were wide-eyed with amazement at the magic show.