Chinese phrase
不许偷看！ bù xǔ tōu kàn
Meaning
no peeking!
When to use it
A playful warning not to look before the right time. It is common when someone is hiding a surprise or playing a game, and sounds firm but friendly.
Example dialogue
我要去找你了！ wǒ yào qù zhǎo nǐ le
I'm coming to find you!
等一下，我还没藏好，不许偷看！ děng yí xià wǒ hái méi cáng hǎo bù xǔ tōu kàn
Wait, I'm not finished hiding yet. No peeking!