What does Cat Sandwich mean?

Cat Sandwich meaning in Urban Dictionary

Unlike its title might recommend, a cat sandwich is in fact entirely clear of small feline creatures. The "Cat" in a Cat Sandwich is actually only an acronym for the sandwich's filling; Cheese, Avocado and Tomato. (With pepper on the top for additional deliciousness)The fillings should all be cut, using mozzarella cheese regarding the bottom, tomato in the middle and avocado ahead.