When someone borrows as something from you and comes back to get repaid for what they borrowed.
I loaned Bob $20 bucks and the next week he was pulling a roundtree ( borrowing then saying it was them that gave it to you) and tried so say I owed him.
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.