A girl who gives really good head, but her very annoying personality slowly sucks away your soul.
Bro 1: Bro, Jasmine gives crazy head. Matty is so lucky.
Bro 2: No way bro, she's a dementor,
Bro 1: What does that mean?
Bro 2: It means she's fucking crazy.
Bro 1: Oh, that would it explain why Matty never wants to hang with us anymore.
Someone who is in the fringe of your group of friends who is tolerated because it would be a shame to tell them to Fuck off!
They also have some strange ability to turn even the funniest momements into akward ones and sap all happiness from those around.
Person 1 : Never invite jim to out for a drink
Person 2 : Why not
Person 1 : Cuz he's a fucking Dementor
Dude one: bro are you ok your acting like a dementor
Dude two: yeah I'm fine just stressed from quarantine
Woman's menstrual period. Goes along with Blast-ended Skrewts (cramps) and Azkaban (uterus).
It sucks.
"Hey Jenny, would you like to go swimming?"
"Naw, I can't."
"Dementors?"
"Fuck yes."
The most Ballin Drink you can make, Brass Monkey a 40 of Old English with Purple Drink, called the Dementor because it resembles "Dementor Piss" according to Jonny Haworth. WARNING: you will feel like you just got the kiss of death from a Dementor if you can conquer this beast.
Make one Grape Kool-Aid single, brass monkey a 40oz of Old English and there you go.
"yo son, that Dementor fucked my shit up"
"that Dementor makes me feel like a menace in South Central while drinkin juice in the hood"
"Smokin on dat Chronic drinkin Old English!"
The worst part about prison.
Especially when they are flying all over the place.
"The worst part about prison....was....the dementors"
The worst part of prison, according to Prison Mike.
Dwight: Prison Mike, what's the very very worst thing about prison?
Angela: (under her breath) Don't encourage him, don't...
Michael: The worst thing about prison was the... was the dementors! They were flying all over the place and they were scary and then they'd come down and they suck the soul out of your body! And it hurt!
Karen: Dementors... like in Harry Potter?
Michael: No... Not Harry Potter.