Zip it 闭嘴，住口

If someone says "Zip it!", they're telling you to shut up or stop talking about something.
如果有人说“Zip it！”，他们是在告诉你闭嘴或是停止谈论某事。

例如：
Kelly was about to say the wrong thing, so I told her to zip it.
凯莉快要说错话的时候，我告诉她住嘴。
If you ever think I'm going to say something stupid, just tell me to zip it, will you?
如果你认为我会说蠢话时，就告诉我别说，好吗？

快速测试：
If you tell someone to "Zip it!", you want them to___________.
如果你告诉别人“Zip it!”，你是想让他们____________。
A. do up their zipper
B. do something faster

C. keep quiet about something