<<clueless, a>>: (by analogy from "a homeless"??) One who doesn't get it and is doomed.
<<codez>>: Phone numbers and authorization codes that allow you to make phree fonecalls.
<<codez kid>>: A person whose purpose in life is finding ways to make phree fone calls. This is a terrible thing to call someone. Much worse than <<punk>>.
<<coldlist>>: Shortlist for oblivion. By analogy to hotlist.
<<Con>>: Convention, or maybe it was Conference— nobody cares any more. A Con is a gathering of haqrz. There are several every year. The most famous is Hacking at the End of the Universe, held by the former Hac-tic in Amsterdam. Next is Hacking On Planet Earth, HOPE, and two infamous Cons are in Austin TX— SummerCon, in the summer, and HoHoCon, figure it out.
<<cookbook guyz>>: Haqr wannabes who don't figure out how to do things for th emselves. They copy down procedures for hacking computers or fones and follow the instructions, like using a cookbook. Everybody has to start out this way. Get over it.
<<culture hacker>>: A pirate whose raw material is the society itself. A <<detournement>> specialist, who takes the <<memes>> of the culture on wild detours.
<<cracker, kraqr>>: Somebody who breaks the copy protection on computer games or intrudes into other people's computers. Or invades cyberspace in strange ways. Or pirates any of the media. See <<pirating>> and <<hack>> and <<spoof>>.
<<cryonics>>: Freezing your body (or just your head, in the budget plan) so that you can be revived (or provided with a whole-body transplant) at some time in the future when 1. they can do that sort of thing, and 2. they really WANT to do that sort of thing for frozen heads like you. See <<futurespoofing>>.
<<cryptography, cryptology>>: Cryptology is the study of <<encryption>>.
Cryptography is doing it. See <<public key encryption>> for a full rundown.