A real Chomstar don't give a fuck. Anybody and they momma can be a chommy. But to be a chomstar, u gotta be down to ride no matter what. A real chomstar don't think twice about slappin a dumb dingy bitch, and a real chomstars got his boys back (no homo) at all times. Chomstars are the hardest mutha fuggas on the planet. Chomstar are the all-stars of all-stars, best of the best, chommiest of chom.
Hybrid of "Cho" Seung-Hui (the Virginia Tech gunman) and the term "going postal", meaning to suddenly become extremely and uncontrollably angry, usually to the point of violence. Going "Chostal" is exclusive to violent or homicidal incidences at schools or institutions of learning (libraries, etc) and more than not culminates with the aggressor killing him or herself.
William was so tired of being picked on throughout high school that he went straight Chostal at the prom and shot twelve people then himself.
derived form the Hindi words Chootad which means butt and Ansh means a very small piece. Someone whose significance is less than even a microscopic piece of butt