bab·y·doll dress 
(bābē-dŏl′)
(bābē-dŏl′)n.
A usually sleeveless or short-sleeved dress having a waistline that is just below the bust and a loose, gathered skirt that ends above the knee.
[After the film Baby Doll (1956), in which American actress Carroll Baker wore a loose, short-sleeved dress with a high hemline.]