Favourite past time of your more discerning necrophile involves cutting an incision into said body and doing the unmentionable to it
That mortician's a sick bastard he's always mumphing his patients
"Yeah some might call him a mumphmaster"
diggin up a corpse, affixing your friends lips to any sphinkter, and stomping on the stomach to send a (not-so) fresh shot of bodily contents into their mouth.
mumphing is a favorite passtime of the saxon footballers