你開玩笑吧！

You're kidding!

Source: Tatoeba

Sentence Composition

=1 你 nǐ you (informal, as opposed to courteous 您 nín)
=1 你 nǐ you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)
2 開玩笑 kāiwánxiào to play a joke; to make fun of; to joke
=3 吧 bā
  1. bar (loanword) (serving drinks, or providing Internet access etc)
  2. to puff (on a pipe etc)
  3. (onom.) bang
  4. abbr. for 貼吧 tiēbā
=3 吧 ba
  1. (modal particle indicating suggestion or surmise)
  2. ...right?
  3. ...OK?
  4. ...I presume.
=3 吧 biā (onom.) smack!
=3 吧 pā only used in 吧呀