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An observed phenomenon where one must increasingly turn to hardcore pornograpgy in order to achieve arousal as they become decentcitized to vanilla pornograpgy.

Coined by a feminist author named Naomi Wolf (an 8/10 MILF might I add)
Mike: I watched porn 4 times today.
Tyson: dude, careful. You might descend down the kink spiral.
by Swagger McGee May 04, 2014
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