Green’s Dictionary of Slang

(US black) a curvaceous figure; thus banter play built on a coke frame, an attractive woman with a good figure.

1938		D. Burley N.Y. Amsterdam News 29 Jan. 19/3: Alice Porter [...] shapes up like a Coca Cola bottle, streamlined like a China Clipper!
[1942		Z.N. Hurston ‘Story in Harlem Sl.’ in Novels and Stories (1995) 1005: Dat shape you got on you! I bet the Coca Cola Company is paying you good money for the patent!].
1944		D. Burley Orig. Hbk of Harlem Jive 12: She’s shaped up like a Coca-Cola bottle, wide open at the throttle. [Ibid.] 16: Up pops a banter play built on a coke frame frocked down to ain’t it a shame.
1958		Murtagh & Harris Cast the First Stone 23: A lush, ripe sixteen with a figure that the colts at Monkey’s called a ‘coke frame – streamlined like a Coca-Cola bottle.’.
1960, 1975		(ref. to 1935) Wentworth & Flexner DAS.
[1992		B. Gifford Night People 8: She was built up from the ground like a Coca-Cola bottle].
2006		Cham ‘Fat Punnany’ 🎵 She have di body weh seh rae ’pon do Coca Cola shape.
[2007		N. McCall Them (2008) 129: Barlowe knews those Coke-bottle hips anywhere].
2010		S.R. Mazzarella Girl Wide Web 2.0 61: A few of the girls [...] described themselves as having a ‘coke bottle’ shape or ‘ghetto booty’.
2020		S.A. Crosby Blacktop Wasteland 98: Jean had a video model’s shape. Full in the hips and the chest with a figure like a Coke bottle.