Green’s Dictionary of Slang

Bombay n.

Proper name in slang uses

In compounds

Bombay bloomers (n.) [? orig. worn by servicemen in India]

(Aus.) baggy shorts.

(con. WWII) J.F. Cody 21 Battalion 29: Spring slipped into a broiling summer and everything was just fine — except for the unwelcome reappearance of Bombay bloomers.
[Aus]D. Ireland Burn 2: They dished him out a pair of yellow boots [...] socks and Bombay bloomers. Shorts. Shorts that were all one size and reached his ankles.
[Aus]Bulletin (Sydney) issues 5853-5882: A wonderfully comical performance from Frol the Siberian bear in Bombay bloomers.
[Aus]S. Maloney Something Fishy (2006) 125: Absurd figure in Bombay bloomers demonstrates correct technique for detection of rogue wildebeest.
G. Gawler Grace, Grit and Gratitude 90: The park manager, an epitome of ‘ockerdom’, welcomed us dressed in a lurid unbuttoned Hawaiian print shirt, sweaty singlet, Bombay bloomers, and thongs.
N. Cain Rugby n.p.: One season, big Bombay bloomers may be in, but the next season, it’s back to hip-hugging, skin-tight shorts.
[UK]comment in Times 5 June 🌐 Nothing wrong with ‘Bombay Bloomers’. You got your knees brown and an air supply around the nether regions!
Bombay bottom (n.)

(Aus.) an attack of diarrhoea, occasioned by food poisoning.

[Aus]M.B. ‘Chopper’ Read How to Shoot Friends 22: I have suffered bad cases of Bombay Bottom, at the hands of Mad Dog’s curried vegies in Pentridge.
[Aus]M.B. ‘Chopper’ Read Chopper 3 30: [as cit. 1993].
Bombay fornicator (n.) [presumably long enough to double as a bed]

(Anglo-Ind.) a wickerwork chair with arms and an extended footrest.

[Ire]G. Hanley Noble Descents 39: He sat down again in the old-fashioned Bombay Fornicator and lifted his long legs, laid them on the extendable arms of the chair and lay back.
[UK]Partridge DSUE (8th edn) 112/2: since ca. 1925; ob. by 1950.
Daily Jang Oct. 🌐 The remarkable piece that was called ‘Chair, Long Arm’ in waiting room inventories. Since one could put one’s legs up on the long arms, some rake of the Raj gave it the not entirely inappropriate name of Bombay Fornicator.
Bombay Hills (n.) (also Bombays)

(N.Z.) a notional dividing line between Auckland and the rest of N.Z., ext. as between urban ‘civilization’ and peasants; usu. in phr. north/south of the Bombays/Bombay Hills.

[NZ] McGill Reed Dict. of N.Z. Sl.