Dementor's Kiss 

this is when you are making out with your significant other and you casually put your hands on their cheeks, but then quickly plug their nose and try to suck the air out of their lungs.

Dame: mmm baby I do love makin out with you

Fella: your lips are so soft, I could do this all night

Dame: c'mere closer

Fella: what you got in mind for me

Dame: (sucking in) Haaaaaarrrryyyy Pottterrrrr

Fella: GASP GASP I do hate the Dementor's Kiss

Dementor's Kiss by RJ_MacReady February 6, 2012

gender dementia 

A mental illness that makes a person constantly change their gender or makes it impossible to concretely define their gender.

He was diagnosed with gender dementia.

gender dementia by Mochi101 September 20, 2021

Dementors 

The worst part about prison.

Especially when they are flying all over the place.

"The worst part about prison....was....the dementors"

Dementors by Random Sewer Rat August 20, 2020

Dementiacratic Socialist Party 

This is the name given a leftist party with geriatric leadership!

Joe, Bernie and Nancy lead the Dementiacratic Socialist Party!

Dementiacratic Socialist Party by I, Wreckerrr May 23, 2021

Gamer Dementia

Coined by Ross Scott of Accursed Farms, it refers to when a video game makes you feel insane because something which you've done/seen before is now suddenly completely dfferent, or no longer works for seemingly no reason.

Jack: So how was Sonic Heros?
Ronald: God, so mixed, it was giving me serious Gamer Dementia!

Jill: Did you get through Hellgate London at all?
Steve: Fuck no, it seemed like I was going insane, stuff was randomly changing!
Jill: Sounds like it was giving you a real case of Gamer Dementia!

Gamer Dementia by basicallyHal October 30, 2020

Dementiacore 

a genre of music heavily inspired by the album "everywhere at the end of time" by the caretaker. the music includes old 1920s-1930s style music with a noise distortion and eventual blurriness of the audio over a long period of time

"yo did you guys hear that new Dementiacore album that was released last week?" "yeah it took me a whole day to listen to."

Dementiacore by TGRaven June 29, 2021

presenile dementia 

The same condition as senile dementia, however describes the condition when it occurs before the age of 65.

Idiot: I think the fact he is placing these objects in such places is due to the Alzheimer's causing senile dementia, we'll have to keep an eye out for Disorientation and Memory loss as well as changes in personality, thank god im chief lecturer at Harvard.
Me: You're a twat, its presenile dementia he is only 64.

presenile dementia by kampin_bunny August 13, 2006