What is Piett?
1.
When someone really screws up and you think there's going to be hell to pay but they somehow get away with it.
It comes from Admiral Piett in Star Wars. After the millenium falcon goes into hyperspace in the Empire Strikes Back, you just know Vader is going to strangle Piett like all the others who "failed him". But... he doesn't.
(Piett survives until the next movie, finaly dying when a rebel A-wing fighter crashes through the bridge of his ship)
See