(Are) you kidding (me)?

(Are) you kidding (me)?

1. You cannot be serious; this cannot or should not be true. (Used to express shocked dismay or exasperation.) A: "Did you hear that Sam got promoted to General Manager?" B: "Are you kidding me? That guy couldn't manage his way out of a paper bag!" Oh, are you kidding? How can the traffic already be so backed up at 6 AM?
2. You should already know the answer. (Used when someone is giving an emphatic affirmative answer.) A: "Do you want a piece of this cake?" B: "You kidding me? Of course I do!" A: "Is Sally a good lawyer?" B: "Are you kidding me? She's one of the best in the whole Pacific Northwest!"
See also: kid
Farlex Dictionary of Idioms.
See also:
  • can't even
  • I can't even
  • cannot
  • cannot but
  • the grapes are sour anyway
  • can't make head nor tail of (someone or something)
  • can't make head or tail of
  • can't make head or/nor tail of something
  • can't make heads or tails (out) of (someone or something)
  • can't make heads or tails of