Where does this phrase come from?

[BLAYBLAYBLAY]

Where does the phrase 'My monkey has a blue face and smells of elderberries' come from? I'm intrigued!

[Rabelais]

It comes from you I think, though it does seem to be similar to the line from Monty Pythons The Holy Grail. I think the quote you really want is "I don't want to talk to you, no more, you empty-headed animal, food trough wiper. I fart in your general direction. You mother was a hamster and your father smelt of elderberries."