Thinking musically, science fiction is what you get when fiction goes electric. You plug ideas into an effects box and play with all the settings - adding distortion, harmonics, sustain, feedback and maybe a little echo. Then you turn all the amplifiers up to eleven. - Chris Dolley
Chris Dolley's website is: www.humor.me.uk/mambo.
Perhaps that should be Chrïs Dölley.
Found at SF Signal, which also prints many more definitions, some rather longer and most less headbangy.
Found via Scalzi's blog.