boners

I made a real boner in the meeting when I called the client by the wrong name.

我在会议上犯了个大错，把客户的名字叫错了。

She told me about the boner she made on the exam, forgetting to answer the last question.

她告诉了我她考试时犯的尴尬错误，忘了回答最后一道题。

His report had a few boners that made the numbers look wrong.

他的报告里有几个尴尬的错误，让数字看起来不对。