What in the wide world of sports?

Meaning

A humorous, slightly over-the-top way to express extreme bewilderment. It is often used to poke fun at the absurdity of a situation.

Playful, incredulous

Used in a sentence

• What in the wide world of sports were you thinking with that haircut?
• I saw him trying to wash the dog in the dishwasher. What in the wide world of sports?
• What in the wide world of sports is going on with the weather today?