Green’s Dictionary of Slang

(Aus. Und.) an aspirant gangster.

1993

Smith & Noble Neddy (1998) 154: This particular night they were all there, including Terry Ball (a real nutter), Roy Thurgar (a very good boxer) and that old Saturday [would-be] gangster Billy Stevens.

wages.

1896

G.F. Northall Warwickshire Word-Book 199: Saturday-night. Wages. ‘If I have a good Saturday-night, I’ll buy the nipper a pair o’ boots.’ ‘Have you drawed your Saturday-night?’.

see Monday morning quarterback n.

a mistress whom one sees only at weekends.

1903		A. Binstead Pitcher in Paradise 37: Something very choice that he was taking down to ‘Saturday-to-Monday’ at the Pavilion.
1904		Sydney Sportsman (Surry Hills, NSW) 10 Feb. 3/5: The beautiful (and costly) Saturday-to-Monday bride.

(mainly school/provincial) Easter Saturday.

1860		Hotten Dict. of Modern Sl. etc.
1864, 1867, 1870		Hotten Sl. Dict.

see six ways from (next) Sunday under Sunday n.¹