Meaning:
Literally translated as “how evil can someone be,” this is a catchphrase often used by young women to jokingly proclaim their innocence. The original line was “how evil can a kitty be,” often accompanied by hilarious short videos of cute cats wreaking havoc in a household, like soiling a bed sheet or destroying a sofa with their claws.
Example:
A: 你最近怎么总是带零食给我吃？老实说，你想干什么？
Nǐ zuìjìn zěnme zǒngshì dài língshí gěi wǒ chī？Lǎoshí shuō，nǐ xiǎng gàn shénme？
Why have you been bringing me a lot of snacks recently? What do you want actually?
B: 猫猫能有什么坏心思呢？我就是买多了，拿来跟你一起分享。
Māomāo néng yǒu shénme huài xīnsī ne？Wǒ jiùshì mǎi duō le，nálái gēn nǐ yīqǐ fènxiǎng。
No strings attached. It’s just I bought a lot of them and want to share with you.