It's not a story, it's a joke. 这不是故事 是笑话

147. The bear says: "Your cave?
     那只熊说 你的洞吗
148. I've been dumping my bones here since last week."
     我从上周开始就把自己的骨头扔在这了
149. That's a funny story!
     这故事很有趣
150. It's not a story, it's a joke.
     这不是故事 是笑话
151. What's a joke?
     笑话是什么
152. You know, just making something up,
     就是瞎编出来
153. to make you laugh.
     让人发笑的东西

来自《疯狂原始人 第二部分 The Croods Part2》第 150 行