A hilarious way to say 'I don't know'.
Originated from casual spoken Chinese and later popularized on social media as a meme response to difficult questions.
A direct character-for-character translation of 'Nǐ wèn wǒ, wǒ wèn shéi' (你问我,我问谁). It is used when someone asks you a question that you clearly don't know the answer to, often implying a bit of annoyance or helplessness.