<'Frou-frou' . . . as from "The Merry Widow"?
"Ja, wir sind es die Grisetten,
von Pariser Kabaretten!
Lolo, Dodo, Joujou, Froufrou, Cloco,
Margot.">
I ain't very cultured so I am not sure what you mean.
I use the term to mean "girly"--am I close?
"The Merry Widow" is a wonderful Vienese operetta. Frou-frou was one of the Grisette chorus (along with Lolo, Dodo, Joujou, Cloco, and Margot). I thought you might have picked up the name from the lyrics of the "Grisettte Song".
http://www.sas.upenn.edu/~dfox/operettalyrics.html