Cover your ass - a way of saying "I'm going to do just enough
CYA so that when something goes wrong I can blame someone else
down the line" Another example of society going into a slow death spiral.
Boss: Why didn't you put the fire out before it burned down the building!
Jones: I didn't know the room I was in was on fire because I was doing something important on the internet, Johnson didn't check the smoke detector
batteries.
Boss: Way to
CYA Jones!