An old name
for the 'down regions' of an old lady.
The use of the word 'slurp' comes from a Shakespearian reference when King Aurthur was said to 'slurp uponst thee
that runs freely
and with froth
from the cunny of thy mother's mother', aparently referring
to the frothy nature of his grandmother's lovejuice.
The term bucket is not confirmed, but is widely accepted to be a reference to the 'openning'.