Deriving from cyberpunk novels, meatspace is the world outside of the 'net-- that is to say, the real world, where you do things with your body rather than with your keyboard. William
Gibson's novels (
Neuromancer,
Mona Lisa Overdrive, and Count Zero in particular) note the difference between the 'Net of the console cowboys and the world of the meat outside.
"For many a true
computer geek, moving through meatspace is a daunting prospect."
"Simstim was a
meat toy, which is why Case had never been able to
get into it."