It's all Greek to me

It's all Greek to me.

(informal)

something that you say when you do not understand something that is written or said

Usage notes: This phrase comes from Shakespeare's play, Julius Caesar.

I've tried reading the manual but it's all Greek to me.

Name	Pronounced	Usage
Zareen	-	Persian
Ina	EE-nə (English), IE-nə (English), EE-nah (Swedish, Dutch, Limburgish)	English, German, Swedish, Norwegian, Danish, Dutch, Limburgish, Croatian
Sophokles	-	Ancient Greek
Gibbs	[gibz]
Carolina	[.kærə'lainə]
Mazin	-	Arabic