Urbandictionary.com defines it as:
-Vigorously shaking your Gluteus Maximus (Sounds a bit like Zumba class).
I'd like to define it as:
-An accidental dance move Miley Cyrus created when she was trying to shake hair lice out of her pixie cut.
OR
-One of the many side effects that you hear on those pharmaceutical commercials. WARNING: Taking Xarelto may cause high blood pressure, an increased risk of paralysis, and the urge to twerk.