Top Definition
The practice of videotaping yourself masturbating and then masturbating to the video. The process can be continued ad infinitum, till you have created a fractal of narcissistic pornography.
Fractal jacking is one of the top ten pastimes at Harvard.

I just reached the hundredth iteration of my fractal jacking; time to celebrate!
by tungstenseabass December 26, 2010

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