pop-eyed
US /ˈpɑːp.aɪd/
UK /ˈpɑːp.aɪd/
1.
having bulging eyes, typically as a result of shock, fear, or excitement
:
•
He stood there, pop-eyed with astonishment, as the magician made the rabbit disappear.
•
The sudden loud noise made the cat pop-eyed.