Brighton Shuffle
When one of two sexual partners proceeds to empty their bowels on the other who is laying on their back. The chosen defecator erforms a crab-like side to side shuffle while releasing feces as to provide full bodily coverage on thier sexual partner. The "Shuffle" became popular with day-trippers who visited Brighton during the late 1800's but has since fallen out of popularity due to the required leg strength needed to perform the shuffle properly.
If I perform one more Brighton Shuffle I will get a hernia.