i dont know why the other definitions are SO wrong. the word Hink derives from the word Hinky (meaning suspicious, scandalous, shady, most of the time illegal activity or actions)
Hink is a word used to describe suspicious and illegal materials. often relating to identity theft and counterfeit material, such as credit card numbers and personal information. fake IDs and checks. things like that. Hink can also mean drugs and the having, using or selling of drugs, or drugs and other weapons. basically everything that can help you to commit a crime or has illegal intentions as the reason for having it. it was mainly used and spread starting in orange county and riverside areas by drugs users in the 80's and by members of the gang Pen1 (or Peni). however it has come into much wider use since than and it not solely gang affiliated. although if you trace back far enough to who you know that uses the word hink, you will most likely come back to someone being in contact with a PEN1 member or drug dealer formt he 80's and 90's
"hey man, wheres mikes car?"
"idk, but we have to clear all the hink out of it before the cops come looking"