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

1.
mata terbeliak, sangat terkejut
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.
Apabila dia melihat cincin berlian yang besar itu, matanya terbeliak.
•
The children's eyes were out on stalks when they saw all the presents under the tree.
Mata kanak-kanak terbeliak apabila mereka melihat semua hadiah di bawah pokok.