Tool Syndrome is a offset of crackeritis. When crackeritis is at its end, there are three things that may happen

1. You may get shot in a drive-by by a group of real black people
2. Crackeritis passes and you are fine(most common)
3. You undergo Tool Syndrome
Tool Syndrome includes being used, being stupid and douchey and will eventually end in your depression an then suicide

When someone thinks they are the main character of their life. Usually comes with a side of individuality complex, quirky style and a self centered point of view.