N: A person overly obsessed with Dave Ghrol of the Foo Fighters or Nirvana, to the point of becoming a creature esq man similar to that of a fanboy
Dan: Dude where has John been?
Jake: Man, he's been in his room doing nothing but listening to Foo Fighters and Nirvana just cause Dave Ghrol was in em'.
Dan: Shit...Well it seems hes becoming quite the Ghrolem.
Jake: Oh Yes.