grammar Nazi
A person who habitually criticizes the grammar and (often) usage in others' speech or writing, often in ways that are sometimes not even linguistically accurate.
Meaning adapted from Wiktionary, available under CC BY-SA 4.0.
“My brother is a grammar Nazi about my text messages.”
“Please do not be a grammar Nazi while I am still learning English.”
“You are being a grammar Nazi about a very small mistake.”
“She acts like a total grammar Nazi whenever someone uses the wrong form of their or there.”
“I stopped posting my poems online because a grammar Nazi kept leaving rude comments about my creative punctuation choices.”
“Our boss is such a grammar Nazi that he sends back every email if there is even one tiny spelling mistake.”
“I hate writing in the group chat because a grammar Nazi always corrects my typos instead of answering my actual questions.”
“Although he considers himself a helpful editor, his friends often find his behavior as a grammar Nazi quite exhausting during casual conversation.”
first recorded 20th c.
First attested c. 1991, from *grammar* + *Nazi*. The latter term is used here to denote a person who imposes their views on others or is considered unfairly oppressive and needlessly strict.
Last updated August 10, 2026