2.used only by republicans and the extremely mentally handicapped.
3.analogy: someone who still thinks that their piece of shit Honda rice rocket can take on any car(including but not limited to: Ferrari's, Lambourghini's and anything made by Ford)
"You damn pc user use your brain, THIS ISN'T ROCKET SCIENCE"
You can tell who they are by them asking the same question multiple times, or by the look of their desktop
NOTE: they think they are 1337, haxx0r, roxx0r.
Sue: Really? How good is it?
John: I don't know... but can you help be find my documents?
B. Someone who uses linux
B. "As much as i love linux, i would rather be using OS X"
Joe: sorry I can't, I'm a PC User