From Wiktionary, the free dictionary
what has someone done
- A method of drawing attention to some changed aspect of a person or thing.
What have you done to the bathroom? It’s spotless. Thanks!
What has he done to his hair? I’ve seen bomb sites tidier than that.
- An expression of frustration, irritation or displeasure in the face of careless, negligent or reckless behaviour.
What have you done? You’ve spilt it all over my new shirt!
- An expression of cynicism or scepticism; frequently when faced with a recurring pattern of mistakes by another.
What has she done this time, officer?
“Please, sir—” / “What have you done now, Perkins?”
- An expression of fear that a person has made a terrible mistake, the true extent of which is beyond comprehension.
Oh god! What have I done? I’ve doomed us all!
