Green’s Dictionary of Slang

joe morgans n.

[? anecdotal; note contemporary references to Joe Morgan, a ‘famed’ drunk, e.g. Ade, Knocking the Neighbors (1921) 157: He was the original Blotter. [...] According to all the Laws of Heredity the only Son was cast for the Part of Joe Morgan; or Ade, The Old-Time Saloon (1931), 109: Every one who quaffed at the bar was Joe Morgan, the village sot]

(N.Z.) delirium tremens.

W. Smyth Joan of Tussock Country 87: You would give anybody the Joe Morgans [DNZE].