Hater - A person that simply cannot be happy for another person's success. So rather than be happy they make a point of exposing a flaw in that person. 

Hating, the result of being a hater, is not exactly jealousy. The hater doesnt really want to be the person he or she hates, rather the hater wants to knock somelse down a notch.
Example
Susan: You know, Kevin from accounting is doing very well. He just bought a house in a very nice part of town. 
Jane (hater): If he is doing so well why does he drive that '89 Taurus?
Urban Dictionary


I freely admit that I am not a perfect person, but I'm a close to perfect as you will ever get so listen up and pay attention. I have always considered myself a professional hater, able to take the highest pedestal and bring it down a notch have been a specialty of mine for as long as I can remember. One day while watching the news I came up with an idea on how I could help make this world better. Aside from creating a new plague and starting the human race over from scratch I felt that it would be more feasible to write my thoughts out for other to read in hope that I can non-violently tell you why I am so amazing and that you were born on this planet to simply amuse me and breathe up all my air. 

Sites I waste my time at.
www.the-gutters.com
www.27bslash6.com
www.axecop.com
www.theoatmeal.com
www.nxgrind.com
www.gojuiceextravaganza.com