Green’s Dictionary of Slang

nix v.

also nix off, nix out
[nix n.]

1. (US) to forbid, to veto, to reject, to cancel or eliminate.

[UK]J. Poulter Discoveries (1774) 42: Nix in whideling; don’t speak.
[UK]Whole Art of Thieving [as cit. 1753].
[UK]‘Cant Lang. of Thieves’ Monthly Mag. 7 Jan. [as cit. 1753].
[US]Jackson & Hellyer Vocab. Criminal Sl. 31: eye full [...] The object of scrutiny or of attentive observation. [...] Example: ‘Nix Crackin’! The mark on your left is getting an eye full.’.
[US]C.S. Montanye ‘Hoodwink’ in Detective Story 30 Apr. 🌐 I’ll stick if he’s really pickled, but nix if he ain’t.
[US]W. Winchell On Broadway 9 Mar. [synd. col.] When ‘Pins and Needles’ gives that command performance [...] it won’t sing ‘Four little Angels Are We.’ The Labor Dep’t nixed it.
[US]‘Marienne’ ‘Solid Meddlin’ in People’s Voice (NY) 7 Mar. 33/1: Let’s nix out the poetry and start cookin’ with gas.
[US]D. Burley Orig. Hbk of Harlem Jive 109: The cool fools who nix all schools.
[US]F. Paley Rumble on the Docks (1955) 293: Fitz was all for working over the Diggers [...] but Bobo nixed it.
[US]Mad mag. July 23: [heading] Hip Sen Nixes Hangnail Spec.
[US]C. Himes Big Gold Dream 152: They’ve been trying to proposition me into helping them rob some woman, but I nixed them off.
[US]H. Selby Jr Demon (1979) 50: He quickly nixed that idea.
[US] P. Munro Sl. U.
[US]Source Nov. 118: The project was nixed.
[Aus](con. 1960s-70s) T. Taylor Top Fellas 113/2: Miller shirts were also nixed.
[US]E. Weiner Drop Dead, My Lovely (2005) 34: I nixed kicking it off with the wife.
[US]D. Winslow ‘The San Diego Zoo’ in Broken 130: ‘I nixed it’ [i.e. a request for an interview].

2. (US black) of an action, to bring to an end, to abandon.

[US]Pittsburgh Courier (PA) 25 Nov. 7/1: After that frail fling [...] I will nix this scribe.
D. Burley N.Y. Amsterdam Star-News 7 Feb. 16: Nix that frail.

3. (US black/Harlem) to leave, to depart (from).

[US]D. Burley Orig. Hbk of Harlem Jive 12: Ole man, it’s about a tray of haircuts on the backbeat when I nixes my pad.

In phrases

nix on

(US) enough of, no more of.

[US]‘Hugh McHugh’ Down the Line 22: Nix on the smart talk, Sammy!
[US]G. Bronson-Howard Enemy to Society 154: Oh, nix on that, Steve, you don’t know what you’re talking about.
[US]F. Packard White Moll 172: ‘Nix on that stuff!’ returned the one designated as Pinkie.
[Aus]X. Herbert Capricornia (1939) 355: Nix on your chyackin’.
[US]J.T. Farrell ‘A Sunday in April’ in To Whom It May Concern 159: Nix! Nix on that.
[US]I. Rosenthal Sheeper 278: Did I join that ruddy boy’s club called ‘The Free Swingers?’ Nix on that.
J.M. Glass Reflections on a Mountain Summer 67: I keep telling her: nix on the books, Huguette, your salad days are numbered.
J. Bovey Desirable Aliens 124: Nix on the champagne.
G. Kuc Red Sex, White Drugs, Blue Rock N Roll 14: I ordered my usual: turkey sandwich with two cups of java, nix on the moo juice.
nix out (on) (v.) (orig. US black)

1. to kill, to murder.

[US]Pittsburgh Courier (PA) 8 Feb. 7/1: The pounders up here are doing the Indian act because a gate of color had a heated beef with a pale pan and the sepia [...] nixed the gray out.

2. (also nix off) to throw away, to get rid of a person or object.

[US]D. Burley N.Y. Amsterdam News 10 June 16: Bobby Brown had better nix out Belmont if he expects to get his ring back.
[US]Pittsburgh Courier (PA) 24 May 11/2: Nix Out — To eliminate, don’t want any part of. Alice Dixon [...] has completely nixed out Atlantic City as her happy hunting ground.
[US]‘Digg Mee’ ‘Observation Post’ in N.Y. Age 18 Oct. 9/6: [I]t would serve him very well to nix off New Rochelle and his gel.
[US]Cab Calloway New Hepsters Dict. in Calloway (1976) 258: nix out (v.): to eliminate, get rid of. Ex., ‘I nixed that chick out last week’; ‘I nixed my garments’ (undressed).
[US]Mezzrow & Wolfe Really the Blues 122: They were going to leave the milkman a note telling him to nix out the moo-juice.
[US]Hughes & Bontemps Book of Negro Folklore 486: nix out : To freeze out, to eliminate. Two in love nix out all others.

3. to go; thus, fig., to die.

[US]D. Burley Orig. Hbk of Harlem Jive 29: To nix out for good, or to cop a nod no more. [Ibid.] 102: He’d just nixed out from his wheelchair, stashed by the step-off.