you're kidding

you're kidding (me)

You cannot be serious; I don't believe it; this can't be true. A: "Did you hear that Sam got promoted to General Manager?" B: "You're kidding me! That guy couldn't manage his way out of a paper bag!" Oh, you're kidding! How can the traffic already be so backed up?
See also: kid
Farlex Dictionary of Idioms.

you’re ˈkidding

,

you must be ˈkidding

(spoken) used to show that you are very surprised at something that somebody has just said: ‘Did you hear about Christine? She won some money on the lottery.’ ‘You’re kidding! How much?’ You’ve called the police? You’re kidding me!
See also: kid
Farlex Partner Idioms Dictionary
See also:
  • you're kidding (me)
  • you must be kidding (me)
  • you have got to be kidding (me)
  • You've got to be kidding!
  • (Are) you kidding (me)?
  • no kidding
  • No kidding!
  • wouldn't be seen dead with
  • wouldn't be caught dead with (someone)
  • who am I kidding
References in periodicals archive
Passengers reacted with anger online, with one fuming Twitter user writing: "You're kidding me.
"You're kidding! You've mentioned it LOADS," she says.
"'I turned to my fiance and said, "Get ready," and he said, 'You're kidding'.
You're kidding? Densmore Street crosses Morrison Street," he recalled as the crowd laughed.
You're kidding. You're kidding" as he posed Wednesday for photographs with U.S.
It's a privilege." "I reckon if we went out today and said to Australians, "Do you think you could become an Australian citizen without being able to speak English?" They'd say, "You're kidding. Surely you'd have to be able to speak English." Turnbull said the current immigration process was mainly "administrative" while the citizenship test largely a "civics test." The current citizenship multiple-choice questionnaire tests a person's knowledge of Australian laws, national symbols and colors of the Aboriginal flag.
If you look elsewhere to try and deflect blame then you're kidding yourself.
Coleen says I THINK you're kidding yourself - and me.
Q You're kidding! But are we heading for a constitutional crisis?
But if you take a moment to think about it, you know you're kidding yourself.
May's response was, "You're kidding me, right?" But the TSA agent wasn't kidding.
You're kidding yourself.At the beginning of the year I set a bunch of strength goals, I wanted to become strong, so strong that every person I would talk to would know it, not by asking, they'd just smell strength oozing out of me.Anyway, by April I was very close to them, and had even met one or two.
What begins as a traditional retelling of a well-known folktale is the sudden (and continuing) disruption by another voice: the doubting, critical and quirky listener who constantly asks the question (in a variety of guises), "Come on, you're kidding me?!' How does this picture book work?
"When he told me I said 'You're kidding,' that made me want to know even more about hearing someone tap dance over a certain part of the house.