Green’s Dictionary of Slang

Grecian bend n.2

also Grecian bender
[play on SE Grecian bend, ‘an affected carriage of the body, in which it is bent forward from the hips’ (OED)]

‘the bends’ or caisson disease.

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Woodward St Louis Bridge 247: A workman walking about with difficult step and a slight stoop was at first regarded as a fit object for jokes, and cases of paralysis and cramp soon became popularly known by the name of ‘Grecian bend’ [DA].
[US]Maledicta III:2 160: Grecian bender n [...] 3: [DA 1881] Caisson disease or bends.

In derivatives

Grecian bender (n.)

(US) a prostitute.

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‘Ned Buntline’ Buffalo Bill 69: [T]hey looked like true fighting men, but no more like the holiday soldier of the city than a painted Grecian-bender on Broadway looks like a whole-souled, rosy, bright-eyed, full-formed country lass.