A person (usually on a forum/newsgroup/chat room) who makes a habit of constantly correcting others' grammatical mistakes, often to the point of annoyance.
Lay off, already! The last thing we need is another fucking grammar nazi!
by Detonate January 6, 2004
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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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an elitist who gets off on correcting others' grammar and spelling because it makes him feel superior.

grammar nazis often misidentify grammar as the primary determinant of one's intelligence and the most important element of expression.

this belief stems from the grammar nazi's insecurity, which leads him to learn the simplest thing in the whole fucking world to learn and impose it on others, earning self-gratification in the process. realizing how easy but effective it is, the nazi continues this ego masturbation until he can no longer separate the truth from the lie: grammar's not that important, no one gives a shit, and no one likes you.

grammar nazis don't realize that in actuality, grammar is too ambiguous to have a rigid standard, and that though basic grammar is necessary, most grammar rules are not, and can restrict good expression.
Shakespeare: What a piece of work is man! how noble in reason! how infinite in faculty!

grammar nazi: Speak in complete sentences.

Shakespeare: the ability to communicate both colorfully and effectively is way more admirable then perfect grammar so stop sucking Webster's dick, you grammar nazi.
by jjsdfkakfadk January 12, 2008
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(noun) one who is intent on correcting everyone's incorrect grammar
oh em gee, that guy is such a grammar nazi!
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where you go into youtube comments, and you find people correcting people.
Bob809550948094809548094558: wow thats so kool.
BarackObama0432328390432802383428934328: *Wow, that's so cool.
Bob809550948094809548094558: you grammer nazi
BarackObama0432328390432802383428934328: *You grammar nazi.
by AnonymouslyGreat December 27, 2016
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A person so obsessed with grammar that they will go out of their way to correct you.
Fb post: i really shouldnt have done that
Comment: *I really shouldn't have done that.
Reply: really??? correcting my fb posts???
Comment: *Really, you are correcting my facebook posts?
Reply: what are you, a grammar nazi???
by redd menace January 19, 2013
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Usually a pompous arrogent person who uses a screen name such as "sumfacts" or the like, and resorts to grammar correcting when losing a debate in an online forum.
Why are you always correcting everyones post are you the "grammar nazi"?
by TwoSpirit August 20, 2007
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