frou-frou
/ˈfruːfruː/noun
1- a rustling noise made by someone walking in a dress（穿连衣裙走路时发出的）沙沙声。
1.1
- mass noun frills or other ornamentation, particularly of women's clothes（尤指女装上的）荷叶边等华丽装饰：
as modifier a little frou-frou skirt.一件装饰华丽的小裙子。
词源
late 19th cent.: from French, imitative.