Said when one has absolutely nothing to say and has to say
something as when you are daydreaming at an office meeting and suddenly realise that all
eyes are upon you and that someone has asked you a question while you were in la
la land.
Angry policeman: "The whole building is on
fire, the third
floor has exploded, there is absolute chaos everywhere, and I find you standing here with that detonator in your hands. WHAT HAVE YOU GOT TO SAY FOR YOURSELF!!??"
Guilty
guy: "Nooty tooties"