go blank
US /ɡoʊ blæŋk/
UK /ɡoʊ blæŋk/

1.
فارغ, ذهل
to be unable to remember something or think of anything to say
:
•
When the teacher asked me the question, my mind suddenly went blank.
عندما سألني المعلم السؤال، عقلي فجأة فارغ.
•
I tried to remember her name, but I just went blank.
حاولت تذكر اسمها، لكنني فقط فارغ.