Hmm....
My favourite phrase. It signifies nothing, yet tis the beginning of thought. Tis what you say, when you are tired or exasperated or are coming to terms with things, hmm...well, you didnt wanna come to terms with...there you see. It is a wonderful phrase. So much it stands for, so little it is and nothing that stands for is it.
Theres the usual muddle of nonsense I like to write. Like you guessed, I HAVE BEEN COOKING!!!