be something that sb cannot understand, especially talk or writing that is obscure, allusive
She leant across and said, `;This is all Greek to me.'; BNCI
If this is all greek to you and you want more information, all you need is a satellite digital receiver. WebC
If all this sounds more than a little confusing and inaccessible, anyone not well schooled in the Greek tale is indeed likely to be swept with a sense of "this is all greek to me." WebC