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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
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Biffins Bridge Rot Test

When a man inserts his thumb and middle finger into the vagina and anus of a woman and attempts to click his fingers. Used to determine the overall condition of a potential sexual partner’s pelvic floor.
I wasn’t sure, she was a bit old looking. But a quick biffins bridge rot test proved she was in good enough nick.
by Bob Clapperton July 2, 2023
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Fandom Rot

When the reputation of a piece of media (such as a TV show or a video game) on the internet is soured thanks to the unsavory nature of some of its fans who have nothing to do with the media itself, usually amplified by its detractors who compile this unsavory content on sites such as YouTube, in which Fandom Rot can also be called Hatedom Rot. This can in turn prevent newcomers from wanting to check out the media for themselves, usually out of fear of being associated with those fans.

Fandom Rot can "heal" as a piece of media decreases in popularity and/or if its fans and detractors mature and either have a change of heart or move onto different things.

However, some pieces of media may be doomed to suffer from Fandom Rot forever as its fanbase becomes synonymous with it. The people who own the piece of media may also feel it's a good idea to acknowledge or insert a joke or reference about their unsavory fans within the media itself, but this usually just immortalizes the Fandom Rot as a part of the franchise.
P1: Hey, have you heard of Otto's Quest?
P2: Otto's Quest? That show sucks! The fandom is so cringe! Haven't you seen the cringe compilations?
P1: What does any of that have to do with the show itself?
P2: ...I never really thought of that. I still don't want to watch it, though.
P3: Hey guys, have you seen the newest episode where Otto meets one of his weird fans? They got the behavior down to a T!
P1: Why would they want to associate with that? The Fandom Rot has really gotten to the writers' heads.
P2: Does anyone else suddenly feel like watching Otto's Quest?
by yeetyoteyacht July 13, 2023
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Rotting

The feeling of sickness, and overbearing laziness, from wasting all hours of daylight laying in bed.
Bro Dave, I’ve been in bed watching tiktok and texting people since 9AM. It’s 4PM and I’m still in bed. I’m rotting dude.
by Gobb1 July 17, 2023
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hog rot

When you have an engorged and enflamed hog between your thighs that's tender to the touch. Might smell of cottage cheese and butane. Usually caused by multiple nights without a shower and unprotected sex. Enflamation and overencomberence.
Dude I got a bad case of hog rot, don't be mad if I'm slow to get up.
by Hog in the Machine July 17, 2023
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Brain rotting

Term used for smut writing. When readers and writers fall into heavy dirty thoughts.
“Omg Jessica, I’m brain rotting over this hot character!”
I know right he’s sooo fine!”
by Chilliebean September 28, 2023
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Rotting strawberries

When a man has gangrene of the testicles, and they start to turn black and rot.

In which they begin to look like strawberries that are rotting.
I got a horrible case of rotting strawberries fresh from the vine.

My rotting strawberries smell really bad, and they are attracting fruit flies.
by CumCorpse October 6, 2023
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