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A person who appears normal on the outside—sometimes even charming—but beneath the surface is emotionally decayed, morally bankrupt, and entirely hollow. Often manipulative, selfish, and abusive, they wear the appearance of humanity but lack all the qualities that make someone truly human: empathy, accountability, and emotional depth.

Used to describe:

Narcissists

Emotional abusers

Pathological liars

People who destroy others while playing the victim
“He’ll smile in your face, cry on command, and then destroy your life while blaming you for bleeding. Classic rotting core in a human costume.”

“She acted like a supportive friend until the moment I crumbled—then used every secret I ever shared against me. That’s not a person. That’s a rotting core in a human costume.”

“He says all the right words about mental health and healing, but he doesn’t believe in either—he just wants control. He’s nothing but a rotting core in a human costume.”

"He volunteers at a soup kitchen, cheats on his wife, lies to his kids, and hasn’t worked in years—but still walks around like he’s the second coming. He’s not a man. He’s a rotting core in a human costume."
by Roxx Farron June 9, 2025
mugGet the Rotting Core in a Human Costumemug.

Thomas core

Thomascore: when an accident occurs that is both funny and improbable; a situation that would only happen to a Thomas
A piano just fell on that guy’s head! That’s so Thomas core
by RedMoonRising January 14, 2024
mugGet the Thomas coremug.

Snore core

"' I hate you because of your snore core."
by Piickleboii March 17, 2023
mugGet the Snore coremug.

The Core Four

Many ask "What is the Core Four?" The core four is the name given to the four best friends who are practically gods in the world and they set their differences aside in order to succeed, they will never hold anything against one another...Ever.
They also play GTA V in the mean time. "Core Four Or Die"
by Corefour June 15, 2014
mugGet the The Core Fourmug.

Intel Core Plan

1.The plan to assassinate Graystillplays, RTGame, and Let's game it out for lagging their computers so hard that all of intel's graphic cards exploded

2. Shoving intel graphics cards down people's throat so hard that they turn into computers
Artzhole: Did you hear about the intel core plan?
Artzholm: No, did you hear about it?
mugGet the Intel Core Planmug.

core i5 4200U

an intel's processor, in the core series. It is 4th generation, and usually has 8 or 4 cores. It is the worse cpu that still works. It runs windows 7, XP, and Linux Mint best. It doesnt support windows 11 and is awful at running windows 10. When i say awful, i mean it takes exactly 39 seconds to load the start menu. occasionally THE FRICKING CURSOR LAGS.
Finn: Hey John, what is your cpu?
John: it is the core i5 4200U
by gaster#2611 July 10, 2022
mugGet the core i5 4200Umug.

Core

A type of aesthic and subculture that people enjoy and obsess over. it can be about anything.
A few popular examples are cottage core, emo core, grunge core.
A: What are your plans this weekend?

B: I dunno I might stay in and relax.

A: You sure? I heard there's a store not too far from here that sells cottage aesthic.

B: OMG I LOVEEE COTTAGE CORE! :) yesss let's go on Saturday!
by jaden forest March 23, 2024
mugGet the Coremug.

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