Green’s Dictionary of Slang

doddy n.

(Aus.) an old woman.

[Aus]J. Byrell Lairs, Urgers & Coat-Tuggers 51: [A] cunning old Methodist doddy who could only be persuaded to let strangers stay with her when Charlie Boy outlaid a fat in-advance boarding stake [ibid.] 151: In his rueful later years Leonard Blount would swear that [...] that cruel and contrary old doddy Dame Fortune [...] smacked him in the gob with a wet mullet.