The process by which, through the ingestion of an unruly quantity of phosphorous, one's ejaculatespontaneously erupts into flames upon expulsion from the penis causing widespread fear and panic.
Dave and Marie were dating until Dave's spontaneouscumbustion all over Marie resulting in a sudden case of the funerals.
A woman who uses her vagina or other orifices to hold sway over someone, or provide leverage that situations will play out in her favor.
She is such a cuntortionist. First it was withholding sex from her boyfriend because he didn't stop playing Skyrim the moment she told him to and now she's promising sex if he buys her that ridiculous car she wants.