Balrogs are a species that dwell within the Tolkien lengendarium. They are known as "spirits of fire," and are generally considered really bad mojo.
This video shows a Balrog being attacked by elves wielding fire extinguishers:
Balrog is a part of a series that concerns The Olden times when the internet wasn't such shit.
You can help this series out by being a drunk old fucker who has nostalgia glasses firmly affixed.