boner

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

用法提示：这里的“boner”作名词，表示“尴尬的错误”。

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

用法提示：“boner”是可数名词，指“令人难堪的失误”。

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

用法提示：这里用复数“boners”，表示“多个尴尬的错误”。