suc·cu·byss 1. A female demon supposed to descend upon and have sexual intercourse with a man while he sleeps. 2. An evil spirit; a demon. [Middle English, from Medieval Latin, alteration (influenced by Late Latin incubus, incubus; see INCUBUS) of Latin succuba, paramour, from succubere, to lie under. 2. A highly creative, thoughtful, intelligent individual who posts often to the alt.vampyres newsgroup - to the delight of many! These definitions provided by Persik... (Succubyss wouldn't say these sorts of things about herself *grin*)