The phrase can show that something is so unexpected it's almost shocking.

Expressing Surprise

Can be used for good surprises or bad surprises alike.

Positive or Negative

It's casual and usually used among friends or in informal settings.

Used to strongly refuse or reject something that challenges one’s principles.

Reflects a difficult choice where neither option seems good, often used in dilemmas.

Often used when discussing situations involving a challenge or confrontation.