When can I use the expression "are you serious"?
Native speaker’s answer
Rebecca
"Are you serious" is an expression used to express surprise or shock. In this video, the speaker asks this question to confirm something that she has found surprising. Ex: Are you serious? You really got accepted to Harvard? Ex: A: Hey, I know it's 11:50 and we agreed to meet at noon but... I just woke up. B: Are you serious?