Green’s Dictionary of Slang

(mainly Aus.) a drunkard.

1850		Punch 134/1: Barclay [a well-known brewer] was made a Realm-Peer under the title of Baron Swipington.
1876		Melbourne Punch 14 Sept. 1/2: The Town Council of Swipington. They're just a disgrace to the city at large, / And all they can do is drink, blackguard, and barge.
1890		H. Nisbet ‘Bail Up!’ 155: Come along, you two swippingtons; I reckon you’ll be glad to get out and have a wet, eh?
1941		Baker Popular Dict. Aus. Sl.