Siouxsie Sioux, another female singer, gets it even worse, being described as a “blancmange.”
late 14c., from Old French blancmengier (13c.), literally "white eating," originally a dish of fowl minced with cream, rice, almonds, sugar, eggs, etc.; from blanc "white" (also used in Old French of white foods, e.g. eggs, cream, also white meats such as veal and chicken; see blank (adj.)) + mangier "to eat" (see manger).