Frou-Frou is the Frech word referring to a fussy or showy dress or ornamentation. Frou-Frou Clothing indicates that the Clothing as fancy, showy, or overdone.
There is a brand of l ingerie called "Faire Frou Frou", a French phrase meaning "show it off" is one of the leading names in the intimate apparel industry.
Frou Frou is also spelled Frou-Frou or Froufrou.