The term was initially used as a playful way to refer to the group's music, which was often described as "funky" and "psychedelic." Over time, it became synonymous with their signature sound, which incorporated elements of funk, soul, psychedelic rock, and science fiction.
So, while it doesn't have an official meaning, "P-Funk" is a powerful term that encapsulates the unique and influential musical style of Parliament and Funkadelic.