I remember hearing this when down in deepest Cornwall in the late 60s

there was a verse:

Little Ruby Riddle
She broke her fiddle
Clean cross the middle

the responses were as given by Roberto, above

As it was for school children I supose any rude verses were either cleaned up or not sung. (I was on a Biolgy field trip, the effects of the Tory Canyon oil had played havoc with the local plant and animal life)

Anne