Green’s Dictionary of Slang

pork v.

1. (US) to shoot dead, to kill [fig. use of sense 1].

[US](con. 1967) J. Laurence Cat from Hué 442: Of all the words American troops used to describe death in Vietnam—aced, blown away, bought it, croaked, dinged, fucked up, greased, massaged, porked, stitched, sanitized, smoked, snuffed, terminated, waxed, wiped out, zapped—the one I heard most was ‘wasted.’.

2. of a man, occas. woman, to have sexual intercourse; thus porker, n., a male sexual partner; porkee, n., a female sexual partner; pork pit, a place used for intercourse; pork time, sexual intercourse [pork n. (1b)].

[US]Life in Boston & N.Y. (Boston, MA) 25 Oct. n.p.: A certain little gal [...] they call Maggie and sometimes Pork. She had better be careful of a certain Jack or she will get porked.
[US]Baker et al. CUSS.
[US]Ramis, Kenney & Miller Animal House [film script] boon: Marlene! You’re gonna pork Marlene Desmond!
[US]D. Woodrell Muscle for the Wing 70: You’d have thought he was porkin’ Tina Turner, ’stead of crushin’ my bones.
[US]B. Hamper Rivethead (1992) 80: There was much more to getting yourself than being an honest Joe. That crap rarely counted for anything when it came to pork time.
[Aus]R.G. Barrett White Shoes 4: Gianna didn’t mind doing a bit of porking on the side, and Warren wasn’t adverse to porking someone’s wife or girlfriend behind their spouse’s back.
[UK]K. Sampson Awaydays 95: It’s bad enough trying to get yourself in the mood to pork some piece of blubber.
[Aus]R.G. Barrett Mystery Bay Blues 1: He porked the girl from Victor Harbor while she was asleep.
[US]J. Ellroy ‘Hollywood Fuck Pad’ in Destination: Morgue! (2004) 229: ‘They’d have gotten a motel room.’ ‘You mean a pork pit like this one.’.
[US]C. Goffard Snitch Jacket 79: You’d be porking Lady Skeletor in a New York minute.
[US]J. Ellroy Hilliker Curse 7: He’s porking the Main Blonde from the movie.
[UK]J. Meades Empty Wigs (t/s) 121: I know which I’d sooner have. A well rewarded nympho being porked up every orifice.
[US]C. Stella Joey Piss Pot 34: ‘I doubt he’ll be looking to pork Carmine’s wife again’.

3. to penetrate anally.

[US]J. Ellroy Blood on the Moon 75: ‘I saved his ass from getting porked by every nigger on the yard!’.

4. see cry pork under cry v.

In phrases

pork out (v.)

to overeat massively.

[US]Eble Campus Sl. Nov. 4: pork out – to eat a tremendous amount.
[US]P. Munro Sl. U. 151: pork/pork out to eat a lot.
[US]Eble Sl. and Sociability 31: Sometimes the word + particle construction is typical of and strengthens the synonymy of a group of related verbs: [...] pork out, snort out, [...] and trough out all mean ‘to eat, usually quickly or in great quantity’.