to be very surprised by something that someone tells you.
We couldn't believe our ears when we heard that our tickets weren't waiting for us at the airport ticket counter.
(redirected from not believe your ears)
not believe (one's) eyes
To be shocked or surprised by what one is seeing or has seen. Oh, I can't believe my eyes! Are you really throwing the ball in the house right now?Did you really buy me a new car? I don't believe my eyes!
not beˌlieve your ˈeyes/ˈears
(usually used with can’t or couldn’t) think that something you see/hear is very surprising: I couldn’t believe my ears when I heard my name mentioned on the radio.