A term used to describe things that have long been forgotten but people go back to in times of great boredom.
Also used when the person may not think they are bored but others may think otherwise.
Guy 1: I see you've been stuck in Arkham.
Guy 2:what do you mean?
Guy 1:you've been playing gears of war 2 all day.

Guy 1:I don't know what game to get.
Guy 2: get dead island bro
Guy 1: da fuq? That game is Arkham!
by LMGAS March 29, 2017
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Used by some to define a person that may be insane or on the verge of going insane
by Jason Sole June 04, 2017
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slang term used for something thats creepy.
look at that old man over by the childrens playground he looks well arkham, jeuz what a creepy old cunt.
by grumpyboy November 19, 2005
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The greatest superhero game of all time. Released on 10/18/11, it is one of the big games coming out this year, and in my opinion (which is THE opinion), the best non-shooter game this year.
Billy: Ah man, BATMAN ARKHAM CITY. ITS LIKE THE BEST GAME EVER
*hugs Kevin and starts to cry*
Kevin: I know man, I know. It's so beautiful
*both guys continue to makeout over the awesomeness of the game and then go home to play the new nightwing dlc*
by MajorTrixZero November 05, 2011
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The usage of Lovecraftian (q.v. H P Lovecraft) references during internet discussion or debate.

It does not indicate loss during internet debate, as does Godwin's Law (q.v.) but it does indicate that the discussion has moved to the point where it is ripe for ongoing mockery
The thread was subtly won with the Arkam Effect when his comment carried overtones of eeriness and alien logic.

The Arkham Effect was in blatant use when she wrote "bugger me, you're Great Cthulhu's grumpy, uglier brother, aren't you?"

The Arkham Effect can include a form of double entendre like "I can tell the from your reasoning that you're a deep one".
by Evil Countess September 16, 2013
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The weirdest explanation is the correct one. Opposite of Occam's razor.
Occam's razor says that people used primitive tech and slave labor build the pyramids. Arkham's razor says that Satan called in a favor from space aliens to build them in order to make people disbelieve in Jesus hundreds of years before he was born.
by The Logical Fallacy June 04, 2017
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