This is to McKnees about Knick Knack Paddy Wack. I just used that as an example in my thread about sexual euphemisms in folk music and I should have said nursery rhymes as well. You ask where it comes from; I think it comes from the dirty old man playing with the young girl: one: thumb two:shoe (funky) three: knee four: "door"; well, you get it, he's touching her all over...that's where it comes from, says I...