"I'm just kidding" 是常用的表达开玩笑的英文短语。其中 "kidding" 是 "开玩笑" 的意思。这个短语最早起源于19世纪，在20世纪中期开始广泛流行。
例句1:
I'm just kidding. I don't really hate your cooking.
我只是在开玩笑，我并没有真的讨厌你做的饭。
例句2:
Don't take it seriously, I'm just kidding.
别当真，我只是在开玩笑。
例句3:
I was just kidding when I said I would quit my job.
我说我要辞职只是在开玩笑。