Jiggers, I've heard a very short version of this on Cliffe Bonfire coaches. It's a parody of Rolf Harris's appalling song 'Jeg the Peg'.

It goes:

'My name is JACK (diddle iddle iddle um)
I'm a necrophiliAC (diddle iddle iddle um)
Wherever I go
Through rain and snow
I dig one up
And have a go
My name is JACK (diddle iddle iddle um)'

Valmai (Lewes)