it's all Greek to me

US /ɪts ɔl ɡriːk tu mi/
UK /ɪts ɔl ɡriːk tu mi/
"it's all Greek to me" picture
1.

é tudo grego para mim, incompreensível

something that is incomprehensible or unintelligible to someone

:
I tried to read the instruction manual, but it's all Greek to me.
Tentei ler o manual de instruções, mas é tudo grego para mim.
When they started talking about quantum physics, it was all Greek to me.
Quando eles começaram a falar sobre física quântica, era tudo grego para mim.