blossom

Originally a slang word first known in gay groups and fetish circles from the act of using the penis pump on the anus until the rectum, or other bodily organs are turned inside out to become revealed known as the "blossom." The origin of the word came from a gay fanzine in the early nineties of the same title called, "Blossom" published in Philadelphia. The fanzine specialized in amateur photographs sent in by male readers of their blossoms. The fanzine later changed their name and became more well-known in gay circles as "Pump It Up." More recently, gay fisting groups have adopted this word to describe the same action but in the form of extreme fisting.