YKINOK is an acronym for "Your Kink Is Not OK" (used on Usenet since at least 1993), and is generally used in the BDSM sub-culture to deprecate those who condemn any sexual preferences other than those actual practices (not mere fantasies) which violate the principles of "Safe, Sane and Consensual" or "Risk Aware Consensual Kink." In other words, "YKINOK" is not actually commonly used to condemn other people's kinks, but is used to condemn those who condemn other people's kinks.
YKINOK is contrasted with YKIOK,IJNMK, which means "Your Kink Is OK, It's Just Not My Kink." YKIOK,IJNMK was one of the cornerstone ideas of the alt.sex.bondage newsgroup in the 1990's and embodies the principle of tolerating other people's consensual kinks even if one finds them uninteresting or repulsive.
YKINMK (Your Kink Is Not My Kink) is a common expression among fanfiction enthusiasts and is usually taken as having a similar meaning to YKIOK,IJNMK.
This article is based on "YKINOK" from the free encyclopedia Wikipedia (http://en.wikipedia.org). It is licensed under the terms of the GNU Free Documentation Licencse. In the Wikipedia you can find a list of the authors by visiting the following address: http://en.wikipedia.org/w/index.php?title=YKINOK&action=history