Is there such a word as wut?

"Wut" is not a standard English word. However, it's a common internet slang term, often used to express:

* Confusion: "Wut? I didn't understand a word you just said."

* Surprise: "Wut?! You actually won the lottery?"

* Disbelief: "Wut, you're telling me you haven't seen the new Star Wars movie yet?"

It's important to note that "wut" is considered informal and may not be appropriate in all contexts.