noun
succubus
SUK-yuh-bus/ˈsʌkjʊbəs/
A female demon said to visit sleeping people sexually.
In the legend, a succubus visits sleeping people for sexual encounters.

Etymology
“Lying under” supplies the sexual image behind a term for a prostitute, also applied to a female demon believed to have intercourse with sleeping men.
In context
I walked up to the succubus.
More examples
- The old tale describes a succubus appearing in a sleeper's dreams.
- The scholar studies accounts of succubi in medieval folklore.
- The bitter narrator insults his lover by calling her a succubus.
Forms
succubus · succubi · succubuses