Here are several versions of The Night of the King's Castration. Curious
thing is that I have never read a version of this where the King gets castrated.
This bit wasn't a song but an audience participation story:
"Twas the night of the King's Castration
The big ball was coming off
All the viscounts, discounts, & re-counts were there
Even the poor buggers who couldn't count were in the back row
'What Ho', said the King (audience: 'Asshole! cried the knave')
'To the dungeon with him, 30 days on Exlax & water', said the King
(audience: 'I'll die, cried the knave'), 'You'll shit', said the King
'Where ist the Queen' said the King
(audience: 'She's in bed with Lumbago')
'Get that wop out of there', said the King... " (and on).
There was plenty more to this, but I can't remember.
. Thanks! John Patrick.