Green’s Dictionary of Slang

Chloe n.

In phrases

do a Chloe (v.) [a nude portrait, entitled Chloe, rejected in 1883 by the Melbourne National Gallery and bought by a well-known local hotel; its popularity entered the national stock of idioms (cf. blind as Chloe under blind adj.¹ ; drunk as Chloe adj.; ...Chloe under queer as... adj.)]

(Aus.) to appear in the nude.

1984

Partridge DSUE (8th edn) 317/1: late C.19–20.