A sexual position in which the female partner appears to be dead or lying on the back facing upward. The male partner therefore fucks her while he is on his knees. When having sex the male partner looks as though he is fucking a body that is in a "shallow grave". This position looks as though it is derived from necrophilia.
When and unconscious or deceased person can only be partially penetrated, due to either internal blockage or build up.
I accidentally swapped my rohypnol for Imodium so I improvised. I kept feeding them to her until she passed out from constipation and gave her the Dirty Shallow Grave