From an interview published in the February, 2005, issue of
Locus:
The power of being an author, the
joy of it for me, is that is one wasn't an author one would be a really boring person filled with peculiar bits of trivia, the sort you meet in a bar saying, "Did you know that...?" For an author, all of this "white knowledge",the kipple (*) in the back of your head, no longer is old keys and broken batteries, abandoned buttons, forgotten paper clips; it's actually useful! Most authors I know, whether or not they went through a standard education in their fields, tend to be autodidacts. And they tend to have that immense love of
stuff, of promiscuous and unbridled reading.
(*) Kipple: Kipple is a word coined by the sci-fi writer Philip K. Dick.
It refers to the sinister type of rubbish which simply builds up without any human intervention.
Example: Hey, look at the Kipple in this place.
Kipple breeds Kipple.
http://www.slangsite.com/slang/K.html