Saying the opposite of what you mean, make fun of someone.
當情況不嚴重時
語調 - 應該要聽起來是愉悅的
時間感 - 又快又準
跟事實相反
<當有人正在皺眉頭工作時>
You say: having a lot of fun?
有人說或問明顯(很蠢)的事
Someone: Did you know that we have to wear masks everywhere we go?
You say: Oh really? didn’t know that.
有人做錯事或犯了小錯誤時
<打翻水>