I was just talking to (Boss's Name)

The get out of jail free card when your supervisor asks why you were late.

Said when you clearly slept in or more than one occasion but don't want to let anyone know there is a trend developing.

(Supervisor) "Jim! You're 20 minutes late for the start of your shift."
(Jim) "Yeah sorry, I was just talking to (Boss's Name), the CEO of the company."
(Supervisor) "Oh well in that case, no problems"