dementor

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 1, 2010

The Dementor

The Dementor is a sex position where you assume the misonary position. You then place the blankets over your head like a Dementor from Harry Potter and push down on her stomach, taking all her breath away. It is at this moment you must climax and then make the high pitch squeel of a Dementor. If said female then yells "expecto patronum" well, then you marry her.

She said she like Harry Potter and I gave her The Dementor in bed last night.

by Dracoko4757 December 19, 2016

Dementor

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

Dementor effect

When a person have a good time while another people around him or her having a bad time. This also works backwards.

"Somehow He happy while everybody is sad because we write a quiz. He suck out our happyness. He is like a dementor. Let's purge him!" "He was got killed because he was owned by the Dementor effect."

by McpurplemuffinINTP4W5 November 28, 2016

dick dementor

Someone who gives a blowjob so good they suck a piece of your soul out

Babe, what's the matter with you? You've been laying in bed babbling for the past 10 minutes

Nothing...I just...you sucker me retarded. You're like a goddamn dick dementor

by RememberZapata October 24, 2015

Personality Dementor

People who are so boring and inapt of having any type of originality that they actually begin to suck your spontaneity or creative qualities. They can only be warded off with being incredibly cold or direct rejection.

Girl 1: God I hate being such a bitch but she's just been a complete Personality Dementor!

Girl 2: I know, she's nice but every time I'm with her it feels like she's sucking all my creativity away!

by gaelicstorm<3 September 14, 2011

Dementor

Living depression

Dude one: bro are you ok your acting like a dementor

Dude two: yeah I'm fine just stressed from quarantine

by Beansboii April 15, 2020