Kermit --
A protocol used for transferring files over a dial-up connection that is commonly used on BBS systems.
kill file --
A file used by some USENET reading programs that filters out unwanted messages, usually from a particular author or on a particular subject. If you add someone to your kill file, you arrange for the person to be ignored by your news reader. Originally from Larry Wall's rn program.
kluge --
A quick fix to a problem that places expediency over elegance. Pronounced "klooj". Variant spelling is "kludge".
knowbie --
A person who understands the finer details of computer networking. See also hacker, newbie, and power newbie.
knowbot --
A artificially intelligent computer program that automates the search for animation.