you must be kidding (me)(redirected from You Must Be Kidding)
Also found in: Acronyms.
you must be 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 must be kidding me! That guy couldn't manage his way out of a paper bag!" Oh, you must be kidding! How can the traffic already be so backed up?