洗耳恭听

xǐ ěr gōng tīng

I'm all ears

Character by character

洗xǐ
wash

耳ěr
ears

恭gōng
respectfully

听tīng
listen

你有什么高见，我洗耳恭听。

Whatever brilliant idea you have, I'm all ears.

Tone: neutral.

Polite, but often ironic between friends.

Learn it in context

This idiom and thousands more are in Learn Chinese with Bao, with audio, pinyin and drills that make them stick.