Green’s Dictionary of Slang

smash n.2

1. (UK Und.) counterfeit money [? it smashes the hopes of those who use it].

[UK]H.T. Potter New Dict. Cant (1795).
[UK]Life and Trial of James Mackcoull 183: A poor money-dealer can never do any good until he makes a smash!
[UK]G. Kent Modern Flash Dict.
[UK]Flash Dict. in Sinks of London Laid Open.
[UK]Clarkson & Richardson Police! 332: All I could hear was, there was more ‘smash’ and ‘fins’ doing now than ever, but they had been doing smash, and had had to do a ‘scooper’ from somewhere.

2. (also smesh) cash, usu. change [rhy. sl.; the note has also been ‘broken’].

[UK]D. Haggart Autobiog. 13: M’Guire got L.7 of smash; I got a L.10 bank-note.
[UK]Lytton Paul Clifford I 14: Tannies to-day may be smash to-morrow!
[UK]Leaves from Diary of Celebrated Burglar 34/1: I ‘slung’ him one of the paper notes of French money, and he gave me a fistful of ‘smash’ in return.
[UK] ‘Fanny Flukem’s Ball’ in Bird o’ Freedom (Sydney) in J. Murray Larrikins (1973) 40: Then Fat Mag sailed in and mixed it, / And said, ‘You ice-cream trash, / I didn’t come in on the nod, / But parted up my smash.’.
[UK]O.C. Malvery Soul Market 274: ‘I am the depety; give us yer ’oof.’ The old woman had to explain to me that he was asking for my money. Mr. C. came up and gave him a shilling. He took it and told us to come up to the ‘orffice for yer smash.’ This I understood to mean the change.
[Aus]Smith’s Wkly (Sydney) 11 Aug. 15/4: [We] chopped up £14 each and 16/- in smash.
[UK]P. Allingham Cheapjack 248: ‘Scarper and mind your smash, son,’ he whispered.
[Aus]L. Glassop We Were the Rats 82: The man whose only ambition is to amass smash.
[US]J.E. Dadswell Hey, Sucker 87: When you hear a carnie say he’s going ‘to smooch some smesh’ – he means he’s going to borrow small money.
[US]‘William Lee’ Junkie (1966) 22: He was hitting me for ‘smash’ (change) at regular intervals.
[US]I. Rosenthal Sheeper 106: Soon I was buying his drink and meals, and he was hitting me for ‘smash’.
[UK]R. Fabian Anatomy of Crime 192: Blow me if the connaught didn’t scarper (Scapa Flow: go) with my smash (cash).
[UK]J. Morton Lowspeak.
[UK]I. Welsh Filth 38: I work off all my smash on to the cunt, counting it into his hands.
N. Griffiths Kelly + Victor 66: I dig into me pocket an pull out a handful of smash, count it — 32p — an give it to her.
[UK]J.J. Connolly Viva La Madness 367: It was Bridget’s shoebox money, the smash she keeps for emergencies.
[Aus]T. Peacock More You Bet 62: This [...] folded-over unbundled money, that is, this ‘loose money’ which was, and is, simply known as ‘the loose’ or ‘the smash’.

3. (UK prison) tobacco, in its role as prison ‘cash’.

[UK]Five Years’ Penal Servitude 121: His ‘mate’ soon finds out who the ‘blooming screw’ is that ‘slung the smash,’ i.e. brought in the tobacco.

In compounds

smash-feeder (n.) [SE feeder] (UK Und.)

1. a silver spoon.

[UK]H. Brandon Dict. of the Flash or Cant Lang. 165: Smashfeeder – a silver spoon.
[UK] in ‘Ducange Anglicus’ Vulgar Tongue.
[UK]Hotten Dict. of Modern Sl. etc.

2. a Britannia-metal spoon, made from a metal resembling silver but in fact an alloy of tin and regulus of antimony; the best counterfeit coins were made from such spoons.

[UK]Hotten Dict. of Modern Sl. etc. 219: smashfeeder a Britannia metal spoon, ― the best imitation shillings are made from this metal.
[UK]Hotten Sl. Dict.
[UK]Sl. Dict.
[UK]Farmer & Henley Sl. and Its Analogues.

In phrases

do a smash (v.)

(UK Und.) to pass counterfeit money.

[UK]Birmingham Dly Post 26 Dec. 3/4: ‘I had to enter shops, and having purchased some trifling article, do a “smash” [...] I have “smashed” as much as 30s a day’.