>>283208484
The phrase comes from Seth McFarlane being too stupid to understand what his college professor meant when he said "The Sound of Music insists upon itself". If you've never seen the movie/musical, it's because the main woman just repeats the message of the story over and over and over, while the story never really doing much to demonstrate or challenge that message.
I don't know what Seth McFarlane thought it meant, but apparently something about The Godfather?