fan·cy wom·an
noun/ˈfænsi wʊmən/
/ˈfænsi wʊmən/
(old-fashioned, informal, disapproving)- a woman with whom a person is having a romantic relationship, especially when one or both of them is married to somebody else
与某人有浪漫关系的女人，尤其是当她们中的一个或两个都已与其他人结婚时