One to go beyond needed to criticize a person's writing or grammar. Could be one whom is very over reacter when someone uses grammar incorrectly or spells a simple word, or any word, incorrectly.
1. Man, stop being a Grammar Nazi.

2. That guy is a total Grammar Nazi, dude.
by Thunderbolt48 April 01, 2017
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A person who has nothing better to do than be a word cockwomble, a reichwank of the highest order
The Uber grammar nazi’s are out again , I got moaned at for typing they’re instead of they are
by Lemmy77 February 06, 2018
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