Cock up – This can be used as a verb or a noun and it means to make a serious mistake or a mistake. (It has nothing to do with male parts!)

这个短语既可用作动词也可用作名词，它的意思是犯了很严重的错误（动词）或错误（名词）。（这个表达跟男性器官毫无关系。）

例句：

You really cocked up this time. What are you going to do?

这次真是搞得一团糟，你打算怎么办？