slip someone's mind

US /slɪp ˈsʌm.wʌnz maɪnd/
UK /slɪp ˈsʌm.wʌnz maɪnd/
"slip someone's mind" picture
1.

escapar da mente, esquecer

if something slips your mind, you forget it

:
I meant to call her, but it completely slipped my mind.
Eu ia ligar para ela, mas me escapou completamente.
The meeting time must have slipped his mind.
A hora da reunião deve ter escapado da mente dele.