rack your brain

US /ræk jʊər breɪn/
UK /ræk jʊər breɪn/
"rack your brain" picture
1.

sich den Kopf zerbrechen, intensiv nachdenken

to think very hard to remember something or to find a solution to a problem

:
I had to rack my brain to remember her name.
Ich musste mir den Kopf zerbrechen, um ihren Namen zu erinnern.
We've been racking our brains all day trying to solve this puzzle.
Wir haben uns den ganzen Tag den Kopf zerbrochen, um dieses Rätsel zu lösen.