Green’s Dictionary of Slang

1. to leave, to go off.

1829		Nottingham Rev. 14 Aug. 4/2: Brown said ‘off,’ and both ran away up North-street.
1884		Sporting Times 20 Sept. 2/2: ‘Win or lose, I hoffs hit to the Dials’.
1891		F.W. Carew Autobiog. of a Gipsey 418: I heerd ’s how Griffin ’ad hoffed it to America.
1902		Reading Mercury 23 Aug. 10/4: When my nabs gets ashore he offs to the Revny officers and says he’s got a summat ter’ble heavy on his conscience.
1915		L.D. Richards diary 11 Mar. 🌐 We were just thinking of the nice dinner, when we had to pack and off it.
1959		A. Sinclair Breaking of Bumbo (1961) 128: We’ll off to a little place I wot of.

2. to get rid of, to reject, to dismiss.

1887		‘’Arry in the Witness-Box’ in Punch 5 Feb. 61/2: Wigging? That isn’t the word. / If I ’adn’t dried up, they’d’ave offed me to gaol for ‘Contempt’: like a bird.
1947		M.H. Boulware Jive and Sl. n.p.: Off me ... Don’t annoy me.
1962		P. Crump Burn, Killer, Burn! 267: Off the bet, Hank, I may not be able to run [...] all right, I’m offing the bet.

3. (US) to dispose of, to sell.

1960		C. Cooper Jr Scene (1996) 177: This guy is supposed to have stuff unlimited, says he was gonna off it and get right out.
1977		B. Davidson Collura (1978) 61: [He] bought a ‘bundle’ of fifteen $5 ‘nickel’ bags of heroin, which he would cut up into many more ‘treys’, or $3 bags, which he would ‘off’.
1989		(con. 1982–6) T. Williams Cocaine Kids (1990) 22: The Indians [Colombians] have so much coke they can’t off [sell] it without finding new markets.
1997		(con. 1970s) G. Pelecanos King Suckerman (1998) 121: Right after I go and off an ounce of weed to a bunch of high school boys.

4. to humiliate.

1971		B. Malamud Tenants (1972) 121: ‘Off the shmuck.’ [...] Several of the brothers nodded.
1973		Cincinnati Enquirier (OH) Mag. 14 Oct. 44/2: Offin’ — Loud talking someone usually to embarrass them.