I was just talking on the phone to my old boss who was on his way in to my work to fill out paperwork he needs to sort. I asked him, "Would you like me to put the kettle on?", to which he said, "You no longer need to toady to me" (joking of course). I laughed and said, "Sure, you know that I never did".
He's convinced that there is one word to describe this kind of thing. But neither one of us can think of what it is.