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A semi-pejorative term for polystyrene plastic figurines and miniature model kits made for tabletop role-playing games and wargame simulations, particularly the popular Games Workshop Warhammer Fantasy and Warhammer 40,000 lines. The "crack" designation applies in that fans of these types of games seem "addicted" to them like a drug, and crave buying, assembling, and painting the models, spending large amounts of money and time in doing so, and anxiously await the latest, most finely-detailed releases.

Also used self-effacingly and endearingly by samesaid fans of these games with a good sense of humor about their "addiction".
"Oh, man, it's the new Leman Russ Demolisher kit, and it comes with all the main cannon variants...sweet, sweet plastic crack!"

"Garth came into the comic shop this afternoon and dropped over $300 on plastic crack. Poor, sad bastard...he must live on soda crackers and peanut butter."
by Heavy4Rending September 29, 2009
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A term used to describe the "addicting" manner of obsession seen by certain groups of people and individuals who collect and/or build plastic models and figurines ranging from tabletop RPGs like warhammer 40k to Gundam Plastic Models or "Gunpla". The term has been used due to certain individuals sometimes dropping hundreds of dollars on what to other's perspectives seems like a useless piece (or unassembled pieces) of plastic. The first widespread use of the term was to describe Players of the Warhammer 40K Series and eventually Gunpla Builders. It is mainly used by outsiders for the respective fanbases but the people inside the "Plastic Crack" addiction category use it in a joking manner to describe their hobby.
"Just picked up The OG HGUC Zaku I Sniper Type which was basically impossible to find with the Yonem Kirks custom floating around so it looks like my Plastic Crack addiction has been sated for a while"

"How can that guy just casually walk out of the store after dropping 150 on that Plastic Crack junk?"

"Always that one money loaded guy that drops into the comic store every saturday just to buy at least 50 dollars worth of Plastic Crack"

"All I can say after seeing that dude's transaction total for that warhammer set is that Plastic Crack is on hell of a drug."
by YaBoiShark June 04, 2018
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