Green’s Dictionary of Slang

oliver n.

also Sir Oliver

1. the moon [? the ‘O’ shape].

[UK]J. Poulter Discoveries (1774) 43: ’Tis a rum Darky, and Oliver shows; ’tis a good Night and the Moon shines.
[US] ‘Flash Lang.’ in Confessions of Thomas Mount 19: The moon, Oliver’s leary.
[UK]G. Andrewes Dict. Sl. and Cant.
[Scot]Caledonian Mercury 14 Oct. 4/2: Toasts and bumpers had so often gone round that Mr Maltby was getting on board, but Sir Oliver’s resplendence conducted the company home before twelve in good order.
[Aus]Vaux Vocab. of the Flash Lang.
[UK]‘Jon Bee’ Dict. of the Turf, the Ring, the Chase, etc.
[UK] ‘The Chap Who The Ball Cocks Hangs’ in Flash Casket 93: We walk when pale Oliver’s hid.
[UK]J. Lindridge Sixteen-String Jack 107: Forward wid the moke, do you hear, or we shall have Oliver looking after us before we know it.
[US]Ladies’ Repository (N.Y.) Oct. VIII:37 316/2: Oliver’s Night-Cap, the hour the moon goes down.
[UK]Hotten Dict. of Modern Sl. etc. 71: OLIVER, the moon.
[UK]Hotten Sl. Dict. [as cit. 1859].
[UK]Sl. Dict.
[Aus]Sydney Sl. Dict. (2 edn) 6: Oliver - The moon. ‘When Oliver looks pale,’ when the moon is waning.
[US]H.B. Marriott-Watson in New Rev. 7 July n.p.: There’s a moon out [...] What – Oliver? damn Oliver! [F&H].
[UK]D. Stewart Shadows of the Night in Illus. Police News 7 Dec. 12/3: ‘I don’t see as we has ne’er a chance with Oliver (the moon) a shining as it is to-night’.
[US]F.H. Tillotson How I Became a Detective 93: Oliver – The moon.
[US] ‘Jargon of the Und.’ in DN V 457: Oliver, The moon.
[US]Irwin Amer. Tramp and Und. Sl. 137: Oliver.–The moon. Another word from old English cant.
[US]Monteleone Criminal Sl. (rev. edn) 196: root with the oliver To commit a crime while the moon is not shining.

2. (US) the nose.

[US]Cincinnati Enquirer 7 Sept. 10/7: Oliver—The nose.

3. see oliver (twist) n.

In phrases

oliver is in town

(UK Und.) the moon is full, and thus the nights are too light for stealing safely.

[UK]H. Smith Gale Middleton 1 153: Oliver’s not in town tonight!
[UK]Metropolitan Mag. XIV Sept. Oliver unfortunately being in town that night, which enabled him to see at some distance: .
[UK]Partridge DSUE (8th edn) 828/1: 1780 [...] nearly † 1860.
oliver’s up

the moon has risen.

[UK]Partridge DSUE (8th edn) 828/1: 1780 [...] nearly † 1860.
oliver whiddles (also oliver wheedles)

the moon is shining; often in negative.

[UK]Life and Character of Moll King 12: As Oliver wheedles, I’ll not touch this Darkee, I’ll nap the Pad.
[UK]G. Parker View of Society II 132: These fellows (the Peterers) infested the out-skirts of the Metropolis some years ago, and about Darkey, or when Oliver don’t widdle, watched country carriages, and cut off whatever was tied to them.
[UK]Hotten Dict. of Modern Sl. etc. 71: ‘Oliver don’t widdle,’ i.e. the moon does not rise.
[UK]Hotten Sl. Dict. [as cit. 1859].
[UK]Newcastle Courant 9 Sept. 6/5: ‘Good thing Oliver don’t widdle,’ mutters one of them.
[Aus]Crowe Aus. Sl. Dict. 96: Widdle, to shine ‘Oliver don’t widdle;’ the moon does not shine.