living doll, a

living doll, a

An extremely nice person, amiable and generous. Why a child’s toy should be chosen for this metaphor is not known. Doll alone has meant a young and attractive woman since the mid-1800s, as in Frank Loesser’s hit musical comedy Guys and Dolls (1950). However, the current usage, dating from the 1940s, is applied to individuals of either sex and any age.
See also: living