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

1.
kosong, lupa
to be unable to remember something or think of anything to say
:
•
When the teacher asked me the question, my mind suddenly went blank.
Apabila guru bertanya soalan itu, fikiran saya tiba-tiba kosong.
•
I tried to remember her name, but I just went blank.
Saya cuba mengingati namanya, tetapi saya hanya kosong.