In Greek we do say "Chinese" instead of "it's Greek to me."
before using an English phrase, Greeks often say "As we would say in
flawless Greek . . ." Another interesting linguistic detail is that
for the phrase "going for a walk" in Greek we use the Latin "volta,"
whereas the Italians use the Greek "gyro."
JE comments: I knew you'd come to our aid, Harry! Thank you. And now to complete the cycle, we need to address the question: What do they say in China? Leo Goldberger gave us the Cantonese variant: chicken sounds. Is this universal among all the Chinese languages?