(Adj) A word that describes anyone that feels the need to find, collect, keep, pack ANY and EVERYTHING becasue they do not know how to throw things away.

A nicely put word than Pack Rat.

These people tend to collect soo much stuff, whether it be diapers, books, poop, shoes, clothes, or hair samples that it gets very over bearing and the items in turn tend to run their life to where they don't know what to do with themselves.

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.

Hoarders: A TV show you casually turn on when your parents ask you to clean your room.

Bitches who don't know when to get rid of absolutely useless shit that they own. They tend to defend their possesions by saying that they "need" the material possesions.

In a video games: a person that holds onto every single item of interest, piece of loot/gear for which they can find even a flimsiest justification to keep, be it a limited nature of the item, one of its' stats being 1 point better so it can be useful for a specific build, its' looks, sentimental value, a slight chance that it might be used in some quest 4 years later, funny name and etc. etc.
Always in denial and always complaining that whatever game they are playing has too limited means of storing items in terms of capacity and in terms of sorting items. Usually self proclaim themselves as collectors.

Poor, usually fat people who collect useless items and store them in their home until its overflowing with stuff and they cant even live.

A mully bastard that keeps everything and refuses to part with anything.