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

1.
arquear las cejas, mostrar sorpresa o desaprobación
to show surprise or disapproval by moving your eyebrows upwards
:
•
She couldn't help but raise her eyebrows at his outrageous suggestion.
No pudo evitar arquear las cejas ante su escandalosa sugerencia.
•
The news that he was getting married made everyone raise their eyebrows.
La noticia de que se casaba hizo que todos arquearan las cejas.