What is "miou-miou"

Miou-Miou (born Sylvette Herry on 22 February 1950) is a French actress. In her career she has worked with a number of international directors, including Michel Gondry, Bertrand Blier, Claude Berri, Jacques Deray, Patrice Leconte, Joseph Losey and Louis Malle. A 10-time César Award nominee, she won the César Award for Best Actress for the 1979 film Memoirs of a French Whore. Her other films include This Sweet Sickness (1977), Entre Nous (1983), May Fools (1990), Germinal (1993), Dry Cleaning (1997) and Arrêtez-moi (2013).