A type of masturbating practiced by reclusives who fear that their masturbatory time may be limited.

This is generally not the case, giving furious masterbaters a proclivity to masturbate a lot.
Instead of playing beer pong and sleazing on grimbos, Alex spent the night in his room, furiously masturbating.
by AXAdartmouth April 16, 2009
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Masturbating at a rate likely to cause friction burn.
Dude, wtf was Crowley doing this morning?

He was in early. He masturbates furiously when nobody is around... I wouldn't use that computer if I were you.
by 4th, disgusted March 06, 2008
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