That was an interesting link, of troy.
Linked to the Wiki article was an article by Fred Penzel, Ph.D of the Obsessive Compulsive Foundation about
compulsive hoarding. I think that must be the "technical" definition.
Compulsive hoarding is a form of obsessive-compulsive disorder (OCD), a neurobiological condition, most likely genetically based. OCD comes in a wide variety of forms, of which hoarding is only one. Compulsive hoarders may collect only certain types of things, or they may indiscriminately save everything. We are not talking here about collecting things that are valuable or important such as art, coins, or stamps.
Read more... Edit: And from this Wiki article on
compulsive hoarding, "Hoarding rubbish may be referred to as
syllogomania."
