how, why, where, who, etc. on earth
idiomPart ofearth
how, why, where, who, etc. on earth — idiom
1. Used to emphasize a question when you are surprised, angry, or cannot think of a
1.idiom
Definition
Used to emphasize a question when you are surprised, angry, or cannot think of an obvious answer.
Example
How on earth did you manage to finish the project so quickly?
Why on earth would she quit her job without another one?