on earth

Idioms  

1. Also, in creation ; in the world . Ever, anywhere, of all possible things. These phrases are all used for emphasis in questions or, less often, in a negative context. For example, What on earth is he doing with a spade? or Where in creation did that child go? or How in the world do you expect me to carry all those bags? [Late 1700s]

2. like nothing on earth . Incomparable. For example, That perfume smells like nothing on earth , or Her new hair color is like nothing on earth . [c. 1900]

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Example Sentences

Not so if you confess to streaming military thrillers while other, nobler souls are busy contemplating peace on earth.

From The Wall Street Journal

Bondi Beach, he said, “it’s like heaven on earth. And unfortunately, it’s been turned into hell.”

From The Wall Street Journal

Why on earth, you are probably asking yourself, was I watching this with my kids?

From The Wall Street Journal

"It is really important in that it gives us an insight into Mary's final hours on earth. It is obviously testimony to how she views herself in those final moments," he said.

From BBC

The pangolin, which is the only mammal completely covered in scales, has become the most trafficked animal on earth and is now critically endangered.

From BBC