I apologize again. Please remove your flags. I did change my comment. Comments are even a pain for me. I saw your downvote before I saw what it was on. 
2. more recently, it has become a slang term used to described people who are overly concerned about details (in an unhealthy way), and like to correct others on every occasion they get. Especially evident on internet forums, blogs, and youtube 
https://www.urbandictionary.com/define.php?term=nazi

It was also on Seinfeld.