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.

es todo griego para mí, incomprensible

something that is incomprehensible or unintelligible to someone

:
I tried to read the instruction manual, but it's all Greek to me.
Intenté leer el manual de instrucciones, pero es todo griego para mí.
When they started talking about quantum physics, it was all Greek to me.
Cuando empezaron a hablar de física cuántica, todo era griego para mí.