>>8174113 lb
Prom is short for promenade. Websters has the defintion as:
promenade noun
Definition of promenade (Entry 2 of 2)
1: a place for strolling
2: a leisurely walk or ride especially in a public place for pleasure or display
3a: a ceremonious opening of a formal ball consisting of a grand march of all the guests
b: a figure in a square dance in which couples move counterclockwise in a circle
Maybe they have their own clock? Moving counterclockwise could possibly mean a retreat?