Green’s Dictionary of Slang

1. a two-wheeled cab.

1890–1904

Farmer & Henley Sl. and Its Analogues.

2. a two-shilling (10p) piece.

1899

C. Rook Hooligan Nights 41: I don’t fink there was more’n free twoers worf to be nicked.

3. a two-year prison sentence.

1938

D. Runyon ‘The Lemon Drop Kid’ in Runyon on Broadway (1954) 380: The twoer he does in Auburn.

4. £20; £200.

1959		F. Norman in Encounter n.d. in Norman’s London (1969) 61: two hundred – Twoer.
1970		G.F. Newman Sir, You Bastard 88: A twoer there.
1989		(con. 1950s–60s) in G. Tremlett Little Legs 198: two-er £200.