What is Are You Serious!??
1.
An expression uttered subsequent to an unforeseen response; used in a joking sense; can carry a sarcastic tone; usually accompanied by a dramatic step back from the person; although it carries a question mark it doesn't require an answer.
Paul: "How'd ye get on in the match today?"
Shane: "We lost by 4 goals..."
Paul: "Are you serious!?"
See