Ripperology is defined as being the study of the infamous serial killer Jack the Ripper. Though the term has not made its way into the mainstream, those who study the case, or are simply enthusiasts are referred to as 'Ripperologists'.
This does not simply refer to finding out who the killer was, but who all of the victims were, along with various "evidence" such as the highly debated credibility of the Ripper letters.
"The study of the Jack the Ripper is called 'ripperology'."
"Who is Jack the Ripper, and why do I keep hearing his name? Why not ask a ripperologist?"
The waves on the booty that are created when fucking a woman doggystyle. Often happens when a woman has such a big jelly ass that there are creases that appear to move back and forth. This phenomenon often associated with Black Women.
Term first used in popular culture by rapper Big Boi while on the show Chelsea Lately.
When Jay-Z hits Beyonce from the back, he loves to admire the ripples in the puddin'