Verb: Most intimate of all kisses. One puts one's anus next to one's partner's anus and puckers them together to make a kiss. The hand sign for it is two fists together and then a kiss motion and moving away from each other in an OK gesture.
I gave my beloved the brown kiss, our love has never been greater. It is most intimate of all kisses.
by Willabark April 13, 2014