Male or female who keeps sending dirty (mean) looks your way. Usually done when the person is hating on you.
A good looking girl with all the right curves walks into a club and guys start moving her way. As a result: other girls in the club start giving her dirty looks and stare hard (mean buggin).
A person you hate intensely not because they deserve such hatred but because they serve as a focus for your general hatred. A healthy way to dispense with excess animosity.
Jake's not really that big an asshole. He just serves as my hate sink.