Not a fancy, romanticised name for a prostitute, but, instead, for a cacti. Queen of the night, or Selenicereus grandiflorus for the very fancy is an, according to Wikipedia epiphytic or lithophyic (tree or tock dwelling), night blooming cacti.
I have had this specimen for probably a decade or so, living in various conditions, until moving it into its new home a few years ago, it seems happy. It is not how you might imagine a cacti, with long, branching stems featuring aerial roots, creeping off around the place. This is the 1st time I have seen mine flower with a single, large, pleasantly scented flower, true to reputation, only lasting a single night.