Definitionswoman and is supposed to lie under sleeping people, particularly sleeping men, and have sexual intercourse with them. Its male counterpart is known as incubus. Plural: succubi. Humorously defined by Roger Mellie in Roger's Profanisaurus (1998) as: ' A phantom night-time cock sucker once thought to be responsible for nocturnal emissions.' (I do enjoy Roger's version.)
Usage: He dreamed he was seduced by a succubus.
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