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The term is "functional addict", however a plain old addict is someone would rather forget their kid at school and go to a dirty dumpster to pick up some fake heroin for $300 a gram, and get so blitz they are no longer on earth, because super duper high is greater than being here.
The original GPEN that was a combustion pen being sold as a vaporizer, and it was like $90 dollars at the time.
I also don't really like the firefly, super duper heavy, and I have to use brain power to figure out the correct heating, and expensive.
Not a fan of the haze either, super...