escupir para arriba
To act with overconfidence or arrogance, assuming a situation will never backfire when it actually can. It describes when someone's cockiness or bad actions eventually come back to haunt them (literally to spit upwards, implying it will fall back on your face).
Screw him for escupir para arriba! He thought that by leaving work early no one was ever going to say anything to him.
Automatically translated from Spanish