demimondaine

Borrowed from French demi-mondaine.

demimondaine (plural demimondaines)

1. A sexually promiscuous woman (of the demimonde).
   • 1936, Anthony Bertram, Like the Phoenix:

     However, terrible as it may seem to the tall maiden sisters of J.P.'s in Queen Anne houses with walled vegetable gardens, this courtesan, strumpet, harlot, whore, punk, fille de joie, street-walker, this trollop, this trull, this baggage, this hussy, this drab, skit, rig, quean, mopsy, demirep, demimondaine, this wanton, this fornicatress, this doxy, this concubine, this frail sister, this poor Queenie--did actually solicit me, did actually say 'coming home to-night, dearie' and my soul was not blasted enough to call a policeman.