necrobortion
The act of inserting carrion (ideally a fourth-trimester goat foetus) up a lady's quim. Putrefaction ensues, and after a certain time - weeks, maybe months - has elapsed, the semi-liquid remains can be felched out of her gash by a braver man than me. Preferably at solstice, etc, as with necrobation, which can be done simultaneous, and often is.
Incubating that necrobortion gave your mum lethal blood poisoning. Best put the cadaver on ice till solstice.