The term "Volvic" is used when a hard challenge, usually in video games, is presented. It references to the UK drink Volvic's 2 week challenge to drink as much volvic as possible in order to improve your physical well-being. It can also be used to describe copious amounts of random items/objects/enemies that appear or are presented, again in video games.
(For example, playing an online shooting game)
Max: Man, they are so many enemies.
Tom: It's volvic. I can't kill them all.
It can also be used like this:
Max: There are volvic boxes to climb over.
Tom: I know, very volvic.