wakey, wakey!, excl. — Green’s Dictionary of Slang

wakey, wakey! excl.

[orig. milit. use; the locus classicus was as used on the 1950s radio show the Billy Cotton Bandshow, where the eponymous bandleader adopted it as a catchphrase]

1. up you get!

1952		C. Harris Death of a Barrow Boy 53: Wakey-wakey! [...] Show a leg there! Rise and shine!
1956		Argus (Melbourne) 7 Aug. 6/2: ‘Wakee, wakee,’ said a tanned Australian.
1960		A. Seymour One Day of the Year (1977) II i: Wakey, wakey. Rise and shine.
1974		Galton & Simpson ‘And So To Bed’ Steptoe and Son [TV script] Come on, wakey wakey, rise and shine.
1977		(con. 1940s) O. Manning Danger Tree 154: Wakey, wakey, you lazy bastards.
1985		‘Thommo’ Dict. Aus. Swearing & Sex Sayings 137: WAKIE, WAKIE, HAND OFF SNAKIE — Wake up.
1989		H. Leonard Out After Dark 91: I have never been the kind of person who bounds from his bed with a glad heart to the Tannoyed cry of ‘Wakey, wakey!’.
1993		R. Doyle Paddy Clarke Ha Ha Ha 183: Wakey wakey, Mister Clarke.

2. get a move on! stop day-dreaming!

1959

I. & P. Opie Lore and Lang. of Schoolchildren (1977) 403: ‘Wakey, wakey’, ‘Don’t cry over spilt milk.’.