星期八那天我嫁给你
[xīng qī bā nèi tiān wŏ jià jĭ nĭ]
Literally meaning “Marry me on the eighth day of the week”, this name uses the fact that there's no '8th day' in a real week. It’s like saying “when pigs fly” to imply it might never happen, or could even be a playful way to express anticipation or wishfulness.