Green’s Dictionary of Slang

Mrs Ducket n.

also Mrs Duckett
[rhy. sl.]

a bucket.

[UK]‘P.P.’ Rhy. Sl.
[UK]J. Franklyn Dict. of Rhy. Sl.
[UK]Dodson & Saczek Dict. of Cockney Rhy. Sl.
[UK]R. Puxley Cockney Rabbit.