snoot

My colleague is such a snoot that he corrects people's grammar even in informal chats.

用法提示：snoot 是名词，此处表“语言洁癖者”，在 such...that 结构中作表语。

I don't want to sound like a snoot, but 'whom' is the correct word in that sentence.

用法提示：snoot 为名词，指爱挑用词毛病的人；本句在 like 后作宾语。

Snoots who constantly correct every tiny grammar mistake are often ignored.

用法提示：snoots 为 snoot 的复数形式，作主语，指爱挑剔语言的一类人。