There is a song to the tune of Jake the Peg, my flatmates used to sing after coming back from group hiking trips - I can only remember a few verses

My name is Jack, tiddly-ack, tiddly-ack
I'm a necrophiliac, tiddly-ack, tiddly-ack

I get frustrated, tiddly-ated, tiddly-ated
When I see them get cremated

It makes me chunder tiddly-under tiddly-under
When I see them 6 feet under.

.... etc ...,,

A childhood rhyme that my mother told me that existed before my time. Barney Wooster was a local bread making purveyor. Tune is Knees up Mother Brown

Barney Woosters' bread
It sits in your stomach like lead
Not a bit of wonder,
You fart like thunder
Barney Woosters bread.

Slight variation of nasty rhyme that appears several times in this thread. Don't know name of accompanying tune.

Diahorrea custard, Diahorrea pie
All mixed together with a dead dogs eye
Snatters on toast, nice and thick
All washed down with a cup of hot sick