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

Dream Stan Syndrome 

When a group of people, or a mass of people, build a cult of personality around one person and think that person can't do anything wrong.

Person1: Adolf Hitler did nothing wrong!
Person2: Wow, it sounds like you have a serious case of Dream Stan Syndrome!

Dream Stan Syndrome by vocal percussion February 11, 2021

Amogus syndrome 

Amogus syndrome is when someone sees the crewmate from the 2018 game among us in some random places, such as fire extinguishers and even car tires.

Dude, you're saying amogus to everything. I think you're affected with the Amogus syndrome.

Stop talking about amogus! You look like an Amogus syndrome afflicted person!

Guys, i keep seeing amogus everywhere. I think i have the Amogus syndrome.

Amogus syndrome by Sayajooj February 22, 2021

down bad syndrome 

Where you have no hoes so instead of trying to make a change and talk to someone you whine about it on social media or to your friends.

"I have no one, I'm so lonely."
"You must have down bad syndrome to be talking about it this much."

down bad syndrome by Mr. I Have all the Hoes October 19, 2020

Imaginary Lat Syndrome

Imaginary Lat Syndrome is a common case of someone, typically a male, who believes they are rather muscular when in reality this isn't the case. Those with Imaginary Lat Syndrome can typically be seen walking uncomfortably while flaring their small lat muscles and tensing their arms in an attempt to look "jacked." In reality, it appears douchey and looks like a toothbrush has been shoved up their ass. Manlets are at high risk of falling victim due to overcompensation reasons.

imaginary lat syndrome manlets

Imaginary Lat Syndrome by Chazzy22 September 13, 2013

Yaoi Hand Syndrome 

When a male character portrayed in a yaoi manga, and or anime, has over sized hands beyond normal proportion

Yaoi Animu Fangirl: That guy has a SERIOUS case of yaoi hand syndrome!

Yaoi Hand Syndrome by Bloomi September 25, 2012

can't be arsed syndrome 

The ailment that afflicts all those who should really be doing something productive but instead end up procrastinating or doing something which requires little or no effort what so ever.

I was going to look for a job but i was suffering from can't be arsed syndrome and ended up watching crap TV all day.

can't be arsed syndrome by Martyn Hinchey June 11, 2008