A popular adjective for use when needing to sound intelligent and/or describe a technical process or system. Other examples of this are Photosynthesis and Juxtaposition. The exact definition is situational, and similarly to the 'Room of Requirement' in Harry Potter and the Order of the Pheonix, it can adapt to your needs.
The new design for the Micro-Hydro electric generator is a vambulliant device that generated electricity for thousands of people across the world.
Rotation of "skill" used by subpar players in World of Warcraft refered to as Deathsting. Usually consists of pressing one button repeatedly, while going into panic mode, if anything goes wrong.
The type of vehicle used to transport Hillary Clinton, especially during her failed 2016 Presidential campaign.
It's a van, an ambulance and a limousine all-in-one. Vambulimos are usually black.
While speaking to a group of her political supporters, Hillary turned grey-green and began to convulse. She was quickly escorted out by Secret Service agents and tossed into a waiting black vambulimo where she was given an IV and some oxygen.