an extreme form of masochistic behaviour, in which the slave is coated with fecal material until blisters are raised on the skin. Not for the faint-of-heart, or the sane.

You inject your lover's feces under your skin and wait untill it festers and blisters; Then you rip the blisters open with your teeth, and lick up the festering shit.

A short-lived 80s body modification trend whereby fecal material was injected under the skin to raise (depending on your POV) either hideous pustules or aesthetically pleasing blebs.