relatedly, a somewhat common phrase around this side of the world is/was “it’s greek to me”. I don’t know the history of why it came into public lexicon around here (whether it was imported or grew locally), but been curious.
Wikipedia has quite a comprehensive list of similar idioms from a lot of different languages. Chinese gets a lot of mentions, but so do Greek and Spanish. Plus Turkish and Hebrew. As far as I can tell the Chinese describe any incomprehensible language as "Martian". But "It's Greek to me" goes right back to the Romans.
As a white British dude the problem is that "Telephone" is an Americanism, so I think the solution is that we find an entirely new name to describe speech-like yet utterly incomprehensible-to-the-listener noises that's completely devoid of cultural appropriation. I suggest "This is all Trump to me". The game could be "Trump Tweets".