Green’s Dictionary of Slang

pussy adj.¹

fat, corpulent.

1844		‘Jonathan Slick’ High Life in N.Y. I 149: My pussey cousin seemed to swell up bigger and bigger every minit.
1907		J.W. Carr ‘Word-List of Hampstead, N.H.’ in DN III iii 197: pussy, adj. Corpulent. ‘He ain’ty use to be so pussy.’ Rhymes with fussy.
1914		G.A. England ‘Rural Locutions of Maine and Northern New Hampshire’ in DN IV:ii 78: pussy, adj. Stout, fat.

In compounds