1 definition by Ehlmaris

A person who criticizes someone else's grammar, spelling, and/or punctuation, usually in an online setting. While they are often seen as uptight assholes who really need to get a life, it should be noted that they point out simple flaws that often show a lack of intelligence on the part of the person being criticized.
That grammar nazi's an ass, but he is right that you're stupid.
by Ehlmaris August 28, 2006
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