eyes are out on stalks
US /aɪz ɑr aʊt ɑn stɔks/
UK /aɪz ɑr aʊt ɑn stɔks/

1.
眼睛都瞪大了, 非常驚訝
to be extremely surprised or shocked, often with one's eyes wide open
:
•
When she saw the huge diamond ring, her eyes were out on stalks.
當她看到那枚巨大的鑽戒時,她的眼睛都瞪大了。
•
The children's eyes were out on stalks when they saw all the presents under the tree.
當孩子們看到樹下所有的禮物時,他們的眼睛都瞪大了。