Grammedic 

A person who corrects your grammar purely out of genuine concern for your apparent ignorance, and to help stop the bastardization and ultimate death of the English language.

I'm a Grammedic, NOT a grammar nazi

Grammedic by Grammedic January 13, 2018

Grammatical Pedantry Syndrome 

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."

Grammatical Pedantry Syndrome by Terminological inexactitude September 18, 2013

Grammatically Challenged 

A vast majority of the posters on Urban Dictionary.

i dropped out of school when i was four because that bitch teacher was keeping me down, just like the man. STICK IT TO THE MAN! NOW I ARE RACISTSEXIST! ^^ (Grammatically Challenged)

Grammatically Challenged by Moikii September 11, 2007

Gammerican 

Noun: A racist, flag shagging Yank.

Look at Cletus in his #AllLivesMatter emblazoned shirt, he’s such a Gammerican cunt!

Gammerican by Phargon21 September 12, 2021

this sentence is grammatically correct but it's wordy and hard to read

this sentence is grammatically correct but it's wordy and hard to read is an AD and yet we made it famous. as soon as you say it or it comes up on youtube. everyone will say it

John: this sentence is grammatically correct

Random dude: but it's wordy and hard to read

"this sentence is grammatically correct but it's wordy and hard to read"

everyone in class: this sentence is grammatically correct but it's wordy and hard to read

this sentence is grammatically correct but it's wordy and hard to read by MiraculourLanaAdrianette March 2, 2021

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.

Grammatical Pedantry Syndrome by Jimbeezy4sheezy December 14, 2017

Grammatical Math 

When the words you are saying do not add up correctly to make sense.

"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."

Grammatical Math by soultoast unlimited March 21, 2021