Top Definition
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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