* Surprise: "Walao, you won the lottery?!"
* Disbelief: "Walao, you actually ate all that food?"
* Frustration: "Walao, I lost my keys again!"
* Exasperation: "Walao, why is traffic so bad today?"
* Anger: "Walao, you broke my phone!"
It's important to note that "Walao" is generally considered informal and can be seen as rude in some contexts. It's best to use it with friends and family, and to be mindful of the situation and audience.
Literal meaning:
"Walao" doesn't have a direct English translation. It's best understood as a combination of "Oh my god" and "Damn" - but with a stronger emphasis on the feeling of surprise, frustration, or exasperation.