Green’s Dictionary of Slang

lardy adj.

(also lardy-arsed) fat, obese; occas. as n.

1879		Sporting Times (London) 15 Feb. 3/2: ‘Jest call old Betty Gash, that’s “Lardy Bet” as was, you understand’.
1922		Joyce Ulysses 293: And Bloom of course with his knockmedown cigar putting on swank all over his lardy face.
1934		C. Stead Seven Poor Men of Sydney 22: The priest had a mean look, and on his lardy forehead were faint beads of sweat.
1938		Reading (PA) Eagle 20 Mar. 7/3: A ‘dope’ person is referred to as a ‘schmo hawk’ while an obese person is a ‘lardy’.
1943		R.L. Bellem ‘Dead Man’s Shakedown’ in Dan Turner Detective Mar. 🌐 He mopped his lardy puss with a dime store handkerchief.
1999		Indep. Rev. 20 July 8: His pasty, lardy stomach and double chin.
2001		Guardian 29 Oct. 43/4: Imagining you’re [...] not a lardy-arsed knock-kneed fumbler but an elegant sportsman.
2004		Observer Mag. 13 June 62: It is surely only a matter of time before some ‘reality TV’ bright spark sends Britain’s lardiest family out to Zambia.

In compounds

lardyface (n.)

a derog. description of one with a fat face.

1922

Joyce Ulysses 318: That’s an almanac picture for you. [...] Old lardyface standing up to the business end of a gun.