grammar Nazi

• grammarnazi
• grammar nazi
• grammar-nazi

1990, grammar +‎ Nazi (“one who imposes one's views on others; one who is considered unfairly oppressive or needlessly strict”)

• (Received Pronunciation) IPA^(key): /ˈɡɹæmə(ɹ) ˈnɑːtsi/
• (General American) IPA^(key): /ˈɡɹæmɚ ˈnɑːtsi/, /ˈɡɹæmɚ ˈnætsi/

• Audio (General Australian):

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• Hyphenation: gram‧mar Nazi

grammar Nazi (plural grammar Nazis)

1. (slang, idiomatic, potentially offensive, humorous, see usage note at Nazi) A person who habitually corrects or criticizes the incorrect language usage of others.

   Synonyms: grammar cop, grammar police, grammando

• Where does grammar Nazi come from? (dictionary.com)