How to say “you're crazy” in Chinese

1. 你疯了

   nǐ fēng le

   you're crazy

   Laughing at a wild plan

2. 疯子

   fēng zi

   madman

   For the friend who books flights at 3am

   Heard in real Chinese videos

   • 张差说这个，我是疯子。

     Zhāng chà shuō zhège, wǒ shì fēngzi.

     Zhang Chai said, I'm a madman.

     下饭计划 on YouTube, at 0:30

3. 有病

   yǒu bìng

   you're sick in the head (lit. have illness)

   Now you're annoyed

   Heard in real Chinese videos

   • 他有病吗，自己吓自己。

     Tā yǒu bìng ma, zìjǐ xià zìjǐ.

     Is he sick, scaring himself like that?

     达叔的财智日记 on YouTube, at 2:30

   • 觉得我脑子有病？

     Juéde wǒ nǎozi yǒu bìng?

     Why does everyone in the comments think I'm crazy?

     綜劇安利社 on YouTube, at 0:01

4. 神经病

   shén jīng bìng

   psycho (lit. nerve disease)

   Shouted at bad drivers everywhere

   Heard in real Chinese videos

   • 神经病。

     Shénjīngbìng.

     You're insane.

     小酒窝王月 on YouTube, at 0:34

5. 脑子进水了

   nǎo zi jìn shuǐ le

   lost your mind (lit. water got in your brain)

   The final verdict

   Heard in real Chinese videos

   • 脑子进水了呗。

     Nǎozi jìnshuǐ le bei.

     Because water got in your brain, duh.

     爆笑哈哈猪 on YouTube, at 5:46

5 more ways, mild to strong again

6. 太离谱了

   tài lí pǔ le

   that's wild

   The plan sounds made up

   Heard in real Chinese videos

   • 简直太离谱了，

     Jiǎnzhí tài lípǔ le,

     This is just absurd—a Genshin voice actor dubbing at home.

     虾吱菌Ebi on YouTube, at 0:00

7. 发神经

   fā shén jīng

   losing it

   Texting your ex at 3am

8. 疯疯癫癫

   fēng feng diān diān

   unhinged

   A whole personality now

   Heard in real Chinese videos

   • 那你现在看你疯疯癫癫的。

     Nà nǐ xiànzài kàn nǐ fēngfengdiāndiān de.

     But look at you now, all over the place.

     YOUKU SHOW-Get APP now on YouTube, at 3:20

9. 脑子有坑

   nǎo zi yǒu kēng

   a hole in your brain

   Not a compliment

10. 疯得不轻

    fēng de bù qīng

    seriously, seriously crazy

    Say it, then leave the room