How do you say eat up in mandarin?

There are a few ways to say "eat up" in Mandarin, depending on the context and formality:

Informal:

* 吃饱 (chī bǎo): This literally means "eat full," and is the most common way to say "eat up" in informal settings.

* 快吃 (kuài chī): This literally means "eat quickly," and is used when encouraging someone to eat quickly.

Formal:

* 请慢用 (qǐng màn yòng): This literally means "please eat slowly," and is a polite way to encourage someone to enjoy their meal.

* 请您享用 (qǐng nín xiǎng yòng): This means "please enjoy" and is very polite.

Other Options:

* 把饭吃完 (bǎ fàn chī wán): This literally means "finish the rice," and implies eating everything.

* 吃光 (chī guāng): This means "eat all" and is often used when you want someone to eat everything on their plate.

The best choice will depend on the situation and your relationship with the person you are talking to.