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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.

lonely core

"Lonely core" could refer to a solitary, central element or a foundational aspect that lacks companionship or connection.
James Marriott may be lang but he but he giving lonely core
by Alfredo__ January 14, 2024
mugGet the lonely coremug.

Snore core

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

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.

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.

judeusyyyyyyyyyyyyyyyyyyyyyyyyyiana core

basically when youre such a baddie that your basically almost as good THE JUDE THOMAS VARGHESE living in DUBAI, he is so slay. His aesthetic is basically being gay and only gay.
im dressing up using the judeusyyyyyyyyyyyyyyyyyyyyyyyyyiana core methond for the party
by Leo Teves August 26, 2022
mugGet the judeusyyyyyyyyyyyyyyyyyyyyyyyyyiana coremug.

show core

ususally a scene/emo kid that loves going to shows..that doesnt care who the band is and doesnt care what they play..but they love watching them go play anyways. not saying that showXcore kids are posers, because usually they go to get up-to-date with the new local bands.because you never know when a bands gonna explode one day..and you could be like "eh, i saw them play when they were like not big at all..they only had like 3 people there..i was the 2nd"
show core conversation:

guy: omg are you going to tcr tonight?
girl:hells yeah, u?
guy:fa show
girl:whos playing
guy:shit i dunno...
by sofuckingshowXcore June 28, 2006
mugGet the show coremug.

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