The act of covering one's buttocks. This may be used figuratively when describing measures to prevent negative legal action.
(gr -- pygo- of or pertaining to the buttocks, kalyps- covering)
Our secretary posted the "In case of shooter" guidelines as a pygocalypsis so that the institution cannot be sued.
The act of observing the buttocks of another.
While Sir Mixalot dedicates most of his rap song "Baby Got Back" to his pygophilia, he provides an example of non-sexualized pygoscopia in the introductory passage which he attributes to a disdainful girl; "Oh my God, Becky, Look at her butt. It's so big!"