1. A really really hot chick. She's so hot she's scary. It can also be a really really hot guy, but it mostly for women. This dementor makes something silvery come out of your wand.

You must be a dementor , because when I see you, something silvery comes out of my wand. I mean seriously, expecto patr-OH!!!
by Filius Flitwick January 27, 2007
Top Definition
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.
by Titus Blowhard September 02, 2010
They guard the prison of Azkaban. They suck all the happiness out of people and you'll feel like you'd never be happy again when a dementor comes near you.
"Dementors are among the foulest creatures that walk this earth. They infest the darkest, filthiest places, they glory in decay and despair, they drain peace, hope, and happiness out of the air around them. Even Muggles feel their presence, though they can't see them. Get too near a dementor and every good feeling, every happy memory will be sucked out of you. If it can, the dementor will feed on you long enough to reduce you to something like itself...soul-less and evil. You will be left with nothing but the worst experiences of your life."
by Nastansja March 18, 2004
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.
by emmawemawoo September 02, 2008
dementors,scary creatures who gaurd azakaban.they attacked harry mostly in the third movie because of his tragic past.

DEMENTORS SUCK ... literally they suck out your soul and not your brain like some foolish people think!
by crowie July 31, 2006
1. n. A fictional creature from the Harry Potter series. Dementors guard the wizard prison Azkaban and suck all of the happiness from anything in their presence. Their worst weapon is called the dementor's kiss, which is when a dementor sucks a person's soul out through their mouth.

2. n. A person who kills a good moment or sucks all of the fun out of a situation.
1. "Dementors are among the foulest creatures that walk this earth. They infest the darkest, filthiest places, they glory in decay and despair, they drain peace, hope, and happiness out of the air around them."

2. Robert: Wow I hate going to parties with Erin, she's such a dementor.
Nathan: I know, all she does is stand in the corner and frown...
by Real World HP March 01, 2010
Creatures of everlasting darkness. These creatures are the only things born evil.

Just being in proximity with a dementor drains all happy thoughts away from. They make you relive your worst memory.
They also take away anything warm, whether they be thoughts or the accual tempature.
They are also some of the only creature that do not sleep, they also never walk. They are the only known creature that can suck the very soul from a living thing.
Because of these special abilities they are used as gaurds to the wizard prizion of Azkaban.

The only know way of fighting a dementor is to use a petronus charm.
When thoses Dementors came by..........i nearly pissed myself.
by Phantomdeath August 01, 2009
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
by derek m is gay February 26, 2009
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