Was this term (I believe it is a synonym of geek, nerd, and so on) based on the television series Dexter or was it around before that and the series based its name on it?
closed as general reference by JoseK, Thursagen, Mr. Shiny and New 安宇, Alenanno, z7sg Ѫ Aug 9 '11 at 14:20
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It's been around a lot longer than the TV series Dexter.
The TV series is based on the novels by Jeff Lindsay:
Although dexter is really Latin for right and sinister is Latin for left. From TV Tropes (click "open/close all folders"):