Green’s Dictionary of Slang

kiss off v.

[? billiards use or the offering of a farewell kiss]

1. to sidetrack someone or something, to marginalize, to slight or disregard.

[US]Ade ‘The Fable of the Girl Who Wanted to Warm Up’ in True Bills 86: He allowed his Affections to get all snarled up with a tall female Elfin named Sophy. Fate kissed him off and he lay froze against the Cushion.
[US]J. Evans Halo For Satan (1949) 83: [He] had kissed off all raps except [the one] for tax evasion.
[US]E. Wilson Earl Wilson’s N.Y. 270: She too is unapproachable, though her voice is deeper and more resonant in her ‘kiss-off-brother’ response.
[US]C. Stroud Close Pursuit (1988) 211: He was a pretty junior ADA and it was possible that the honchos [...] were kissing him off with minor shit and keeping the sweet stuff for themselves.

2. (US) to murder or to die.

[US]T.A. Dorgan ‘Daffydills’ in El Paso Herald (TX) 31 July 8: Lifting up his limp form they decided that he had kissed off.
[US]T.A. Dorgan in Zwilling TAD Lex. (1993) 52: The person doc said his temperature was 227 and that he would kiss off at any moment.
[US]P. Cornwell Body of Evidence (1992) 232: He related to her killer to the point he freaked, took himself out of circulation, kissed off before he cracked.
[US]Eble Sl. and Sociability 83: Five terms mean ‘kill’: chill, kiss-off, off, vamp, and waste.

3. to defraud, to cheat.

[US]A.J. Pollock Und. Speaks n.p.: Kissed off, defrauded of share of loot or plunder.

4. to reject, to ignore, to spurn, esp. a lover; thus excl. kiss off!, go away, don’t talk rubbish!

[US]A.J. Pollock Und. Speaks.
[US]B. Schulberg Harder They Fall (1971) 225: Soon as I [...] pay him off, I kiss him off for good.
[US]Lait & Mortimer USA Confidential 39: The prostitute is kissed, then kissed off.
[US]L. Bruce Essential Lenny Bruce 248: That kisses off the grandchildren.
[US]E. Bunker No Beast So Fierce 163: We can kiss this one off [i,.e. a planned robbery] for good.
[US]G.V. Higgins Rat on Fire (1982) 33: Too much time in to retire and kiss off the pension.
[US]J. Wambaugh Golden Orange (1991) 240: Sammy Vogel kissed it off.

5. (also kiss out) to bring to an end.

[US]W.N. Burns One-Way Ride 33: He should have had sense enough after that Elba jolt to kiss himself out of the game.
N. Mailer letter 30 Apr. in Selected Letters (2014) 80: I bnogged down today on page 122 of the new opus, and when your letter came I decided to kiss off for the day, and answer.
[US]Monteleone Criminal Sl. (rev. edn).
[US]S. King Dead Zone (1980) 193: You can kiss off that book!
[US](con. 1964–8) J. Ellroy Cold Six Thousand 205: Barb kissed off ‘Twilight Time.’ Barb did the Mashed Potato. Barb did the Swim.

6. to come to an end.

[US]L. Uris Battle Cry (1964) 102: We both knew it [i.e. an affair] was going to kiss off sooner or later.

7. (US) to leave; leave alone; also as excl. go away!

N. Mailer letter 31 Dec. in Selected Letters (2014) 113: Kiss off, Devlin. I’ve got my own troubles.
[US]Current Sl. I:1 5/2: Kiss off Leave someone alone, go away.
[US]Baker et al. CUSS.