An act requiring two people. First a freshly buried woman is unearthed and stripped of her clothes. Then one person eats the carcas out as the other jumps on her stomach causing her internal organs and fluids to be excreted from the body's orifices, namely the vagina into the other person's mouth.
This is possibly the single most disgusting idea known to man.
"John and I went out last night and did a little mung jumping. Mm mm!"