Your plug’s plug. One step up the ladder from the dude who charges 280 for an oz and is always late.

The grandplug usually deals with larger amounts than a street dealer and usually sells to the person that you or I buy from. They usually pick up pounds(weed), sheets (acid) and 8-balls (coke or Molly) and sell zips, strips and grams.

Being a grandplug has its advantages and disadvantages. An advantage would be that you sell to a small number of street dealers, instead of the consumer of the product. This means being more stealthy as well as less people to snitch on you. A disadvantage would be that if you do end up getting caught, you will get in a lot more trouble than a user or street level dealer. Getting caught with a half oz of coke or Molly and two pounds of weed is a lot more serious than getting caught with a few pills and an oz or two.

The grandplug usually has people come to his place to get the drugs.

A great grandplug is someone who deals in pounds, usually a cartel guy.

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.