Where on God’s green earth? spoken language
Used to ask emphatically that one doesn’t know where someone or something is
I caught the wrong bus and now I have no idea where on God’s green earth I am.
Where on God’s green earth can I put my key?
Where on God’s green earth did you get the money to buy these things?
Used to ask what will happen or what has happened to somebody or something
hurt someone or yourself
If you try to carry that suitcase, you’ll do yourself a mischief.