look daggers at
US /lʊk ˈdæɡərz æt/
UK /lʊk ˈdæɡərz æt/

1.
olhar com raiva, lançar olhares de ódio
to look at someone with great anger
:
•
She would always look daggers at him whenever he spoke.
Ela sempre o olhava com raiva sempre que ele falava.
•
The teacher looked daggers at the noisy students.
O professor olhou com raiva para os alunos barulhentos.