When an injection drug user overuses the needle. For example, someone with the disorder will keep injecting themselves long after the drug is gone or inject substances that would normally done another way. Some users might start injecting alcohol or whatever just get the needle rush. Some believe that this is a process addiction were one becomes addicted to the ritual; this behaviour is a process addiction similar to gambling.
Man, I got the feel for the steel and these track marks are never gonna heal up.
What do you mean, you forgot rigs? I gave you one job to do. What's wrong with you, man?