A poor analphabetic soul who, despite having had his entire life to learn how to spell the words of his first language correctly, still struggles with simple yet repetitive grammar and spelling errors. Often terrorized by Grammar Nazis.
If you have a problem with his Grammar Nazism, stop being such a Grammar Jew!
A person with poor grammar, the opposite of a grammar nazi.
Joe: Hey there having a sale at Walmart!
Joe: Sorry, I'm a grammar jew.