Napalm Jelly-Dick
When a man dips his penis into unlit napalm and proceeds to stick it into a woman's vagina or rectum, or a man's rectum, pulls out his penis, and then lights the given orifice on fire, effectively incinerating the receiving party from the inside out.
Next time I see my ex I swear to God I'll get the boys and we'll napalm jelly-dick that bitch!