When a certain person , place, situation , idea or task is very unpleasant ,distasteful, and in general pisses you off.
"This new supervisor is is revamping all of my work!!!
That fucking chaps my ass." OR " that fucker shorted me on my check!!!! That REALLY chaps my ass. OR" That bitch lied and skipped the pill!!!!THAT REALLY REALLY CHAPS MY ASS!!!!
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.