raise your eyebrows
US /reɪz jʊər ˈaɪˌbraʊz/
UK /reɪz jʊər ˈaɪˌbraʊz/

1.
erguer as sobrancelhas, mostrar surpresa ou desaprovação
to show surprise or disapproval by moving your eyebrows upwards
:
•
She couldn't help but raise her eyebrows at his outrageous suggestion.
Ela não pôde deixar de erguer as sobrancelhas diante da sugestão ultrajante dele.
•
The news that he was getting married made everyone raise their eyebrows.
A notícia de que ele ia se casar fez todo mundo erguer as sobrancelhas.