Green’s Dictionary of Slang

porky n.1

1. a pork-butcher.

[UK]J. Ware Passing Eng. of the Victorian Era.

2. (also pork) a Jew.

[UK]J. Ware Passing Eng. of the Victorian Era.
[US]Ersine Und. and Prison Sl. 59: Pork, n. A Jew.
[US]Monteleone Criminal Sl. (rev. edn) 181: pork A Jew.
[US]J.B. Rubinstein City Police 399: The porkies have the bar [...] You know whose got the license? Pilz, the bookie over on Warner Street. That motherfucker got the license and he’s puttin’ a porkie in as front man.

3. an obese person, often as a nickname or a term of address.

[UK]Era (London) 26 Jan. 10/3: Porky Clarke [...] attended upon Smith.
[UK]Chambers Jrnl 7 Mar. 150/1: Porky Jenkins had been formerly ‘the champion of the light weights’ [...] Handsome but for a broken nose, brave but for his fat.
[UK]Leeds Times 28 Mar. 6/5: ‘Porkey? Can’t say I know him.’ ‘You know; Porkey Cannon — Joe Cannon’.
[UK]Boy’s Own Paper 15 Dec. 162: ‘Porky’ Brown [...] was a very decent honest fellow.
[US]D. Hammett ‘House Dick’ in Nightmare Town (2001) 48: This Porky Grout was a dirty little rat who would sell out his family [...] for the price of a flop.
[UK]H.E. Bates My Uncle Silas 134: Porky dear, the best thing in the world you can eat is cucumbers.
[US]J.T. Farrell ‘A Teamster’s Payday’ in To Whom It May Concern 63: ‘You’re sure in good with him,’ said Porky Mulroy, a rolypoly red-faced young fellow.
[UK]I. & P. Opie Lore and Lang. of Schoolchildren (1977) 188: Podge, porker, Porky.
[UK]R.L. Pike Mute Witness (1997) 79: A perfect example was Porky Frank.
[Aus]B. Oakley Salute to the Great McCarthy 75: He whips over to Porky Beveridge [...] ‘We don’t have that kind of talk round here.’ Porky goggling up at him—(what? Prise the profanity from Porky? Leave him dumb?).
[US]H. Gould Fort Apache, The Bronx 179: You’re lyin’, Porky.
[UK]N. Griffiths Grits 174: Ornleh av t’look at chocolate an that’s it, am a porkeh.

4. (US black) a policeman [pig n. (2a)].

[US]R. Price Lush Life 30: We got to be like deep cover on this, ’cause all them porkies from the Eighth .