a depraved sexual act whereupon two people dig up a corpse, and once exhumed; (sigh :( ) one person stradles its face while the other jumps on its stomach until its half rotting entrails gush out of its mouth. ....aperantly....
e.g. TOM "hey jane lets go dig up that dead guy"
JANE "sure tommy lets go"
TOM "ok jane now you sit on his face remember to cover your nose!"
JANE "im ready tommy"
TOM "whump whump whump whump whump...."