I would love to hear some East Asian or African idioms. Something not indo-european
The Chinese language is full of four-character idioms called chenyus. I'm not too good with them, but a powerful Chinese speaker can subdue anyone by shooting off these idiom bullets in quick succession.
Some that I know of are:
不可救药
Literal Translation: No medicine can save you
Meaning: You're hopeless/Your situation is hopeless
人外有人,天外有天
Literal Translation: Beyond people, there are people, beyond sky, there is sky
Meaning: No matter how good you are, there is always someone better.
对牛弹琴
Literal Translation: Play the piano to a cow
Meaning: casting pearls before swines/wasting your effort and time/ other party doesn't appreciate it
开天辟地
Literal Translation: Open the sky and earth
Meaning: Move heaven and earth (for you)
海阔天空
Literal Translation: As wide as the sea, as empty as the sky
Meaning: The possibilities are limitless, like the sea and sky
OR
Talk randomly without reference points
QI thought me one funny Greek idiom
κάτι τρέχει στα γύφτικα
Literal meaning: There is trouble in the gypsy village
Meaning: Who the hell cares?