Grammatical (or grammar) pedantry syndrome is an illness or a form of obsessive-compulsive disorder where someone has a compulsive desire to correct any grammatical errors one has made and is obsessed with taking this peculiar, constant, and vexatious (from the target's perspective) action.
"Me and mark ate cookies!"
"You mean, 'Mark and I ate cookies!'"
"Stop it!"
"Sorry, I have Grammatical Pedantry Syndrome."
A fake syndrome created in a joke blog by Dennis Baron of the University of Illinois. Many people were fooled by Baron, as the article heavily uses scientific jargon, making it appear like a legitimate piece of scientific literature, but the actual text includes a litany of linguistic jokes and signs that it is actually a hoax. Also, anyone with a basic understanding of OCD would be able to tell that the purported symptoms of "GPS" are dissimilar to actual OCD symptoms; OCD is an anxiety disorder defined by intrusive thoughts and repetitive behaviors, not a need for order or structure.
Grammatical Pedantry Syndrome is a load of baloney, however I do have Memetic Veracity Syndrome; that is, the need to correct false information (particularly contained in memes) on the internet.
"I was the only one to help set up for the party today and I did everything" "Didn't Mark, Jim and Pam help you set up? That grammatical math don't add up."
Often associated with intelligence, but more commonly associated with sexiness.
Grammatical Lust in action: "You capitalise letters at the start of sentences? Excuse me while I take my pants off..."
"That girl spells 'you're' as 'your'...despite her well proportioned physique, she would be so much attractive if only she could better satisfy my grammatical lust."
1.Using "he" in a sentence as the default pronoun(instead of "he or she") for someone of an unknown gender,a person using this rule is thus considered a sexist by feminists.
2. Rule that compares such a person previously described to that of a wife-beater(wife beating is where the Rule of Thumb part originates).