informal something that you say when you are very surprised by what someone has just told you.
'They're getting married, you know' 'You're joking! They've only known each other a month.'
(redirected from You're joking!)
you're joking
You must not be serious. What you are saying is very surprising or unreasonable. Twenty bucks for a child's ticket? You're joking!My painting sold for $5,000? You're joking.