The process by which a subreddit becomes utterly insane and filled with shitposts to try and survive a real or perceived content drought, as famously demonstrated on r/BatmanArkham. Other subreddits which have undergone this include r/Deltarune and r/tf2. Some people will try to force this on a subreddit during a content drought, no matter how brief it actually is, because haha is he stupid = funny
by E hates Q May 31, 2024

When a fandom of a game, show or other form of media is left without content for a substantial amount of time the fanbase will start going through a period of insanity where they make memes and jokes that would not make any sense to a mentally sane person
Wow none of these memes make any sense they aren't even talking about the show
that's the arkham effect for you
that's the arkham effect for you
by Koninja February 12, 2024

A philosophical device that suggests that if a deliberately public and spectacular crime can be ascribed to an antisocial personality disorder, in particular one of a magnitude great enough to warrant involuntary commitment to a mental institution, then this can be assumed to be the appropriate explanation.
after a deliberately dramatic act of mass violence "I read the guy's manifesto, and he seems like a sociopath. I think we can use Arkham's Razor for this one."
by jpa1708 September 15, 2025

When a subreddit randomly goes batshit insane, with stupid shitposts and genuinely insane people. Originally from r/batmarkham, hence the name.
Guy 1: All of my favorite subreddits are being flooded with stupid shitposts. What the fuck does "is he stupid?" even mean!?
Guy 2: Blame the Arkham Subreddit Effect...
Guy 1: Why?
Guy 2: Just take a stroll through r/batmanarkham and come back after 10 seconds.
Guy 2: Blame the Arkham Subreddit Effect...
Guy 1: Why?
Guy 2: Just take a stroll through r/batmanarkham and come back after 10 seconds.
by volpevulpes January 9, 2024

The most magnificent boy known. Kind, caring and so funny. His personality is so infectious because he is hilarious, a daredevil but so polite and gentleman like. He cares for all around him and respects those he loves. Arkham is intelligent and always challenges himself. Named after Batman, Arkham-knight, Arkham is truly a knight in shining armour. He is protective caring and will love blindly despite fault. He oversees people’s short-comings and looks only for the good. You definitely want to be with an Arkham he will spoil you like a princess. Be thoughtful of him, he is strong but needs nurturing and caring for. His heart is big and he will be your best friend because his name I. Arabic means ‘the writer’ and ‘the prophets best friend’. He will soldier on through difficulties and overcome any obstacles and defy those who cause harm to the ones he loves. He is a fighter and will see death and still win. He is the friend and person you need in your life. Arky is his nick name. Just like Batman, there to protect and keep you safe.
by Ax1016 November 22, 2021

I don’t know why he quit, this thing is starting to take off!
Man, that’s arkham's razor, don’t try to understand crazy people!
Man, that’s arkham's razor, don’t try to understand crazy people!
by Justice fer all February 6, 2024

When a fanbase makes absurd memes about the minimalist things from media, due to said media not receiving new content for a long period of time.
Originates from the subreddit r/BatmanArkham, where the game's fanbase started creating absurd memes of the game, due to the game's developers not creating new content for years.
Originates from the subreddit r/BatmanArkham, where the game's fanbase started creating absurd memes of the game, due to the game's developers not creating new content for years.
by TheGrammarMan February 8, 2024
