This is quoted in a play, "Babies," by Jonathan Harvey, 1994, page 81:

Mister Bear? Are you there?
Don't you dare to take a bite of me.
If you do, I'll scream and quick
My ol' man'll fetch his stick
'Cause he ain't afraid o' bears, not he.
So if you want a little baby girl
And you're hungry
And you can't wait any more,
I can tell you where there's plenty.
Have a try at number twenty.
Yes, go and bite the little girl next door.
Go and bite the little girl next door.