1 definition by John O' Driscoll

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!?"
by John O' Driscoll June 5, 2007
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