you could hear a pin drop

US /juː kʊd hɪər ə pɪn drɒp/
UK /juː kʊd hɪər ə pɪn drɒp/
"you could hear a pin drop" picture
1.

podia-se ouvir um alfinete cair, silêncio absoluto

used to describe a situation where there is complete silence, often due to tension or anticipation

:
When the teacher announced the test results, you could hear a pin drop in the classroom.
Quando o professor anunciou os resultados do teste, podia-se ouvir um alfinete cair na sala de aula.
The audience was so captivated by the performance that you could hear a pin drop.
A plateia estava tão cativada pela apresentação que se podia ouvir um alfinete cair.