Green’s Dictionary of Slang

1. (orig. US) a super-conformist, conventionally attractive woman.

1965		J.P. Carstairs Concrete Kimono 190: ‘My brother’s mob,’ Sharon said. ‘Exactly, Barbie-doll, but I’d never heard [...] at that time.’.
1983		R. Aven-Bray Ridgey-Didge Oz Jack Lang 19: Barbie Doll Moll.
1983		Wall Street Journal 2 Aug. n.p.: Their feminine ideal is the overblown Barbie Doll with just enough sense to keep her pretty trap shut [R].
1986		C. Hiaasen Tourist Season (1987) 366: It’s not me, Barbie Doll, it’s progress. Your beef is with the Puerco Development.
1999		‘Master Pimp’ Pimp’s Rap 60: There sat a big black guerilla nigger. A barbie doll was hanging tough on his arm.
[2004		T. Fey Mean Girls [movie script] Regina’s like the barbie doll I never had. I'd never seen anybody so glamorous].

2. (US gay) a feminine homosexual who prefers to dress in women’s clothing.

1998

R. Scott Rebecca’s Dict. of Queer Sl. 🌐 Barbie — a ditzy drag queen.