The plural, mouse's ears, is used to describe the position a stripper gets in when she is crawling slowly towards you and her ass cheeks appear to be on top of her headlike those of the beloved Disney critter.
Also, the name of a great strip club in Johnson City, TN
Sam, did you see the set of mouse's ears on that stripper when she was coming at us on all fours?
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.