When someone is complaining/bitchingalot about there problems instead of answering a question or decideing something. complaining and bitching smushed together.
"Why don't they have caramel ice cream, this is totally unfair?"
"Stop your combitchin, and choose a damn ice cream flavor."
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.