Green’s Dictionary of Slang

1. to fellate [suck v.¹ (1); the off implies orgasm (cf. come off v.³ )].

c.1900		A. Cairene Sixfold Sensuality 17: [P]utting the handle of his belly into her mouth he told her to suck him off.
1909		Joyce letter 8 Dec. to Nora Barnacle, in Ellman Sel. Letters (1975) 185: You say when I go back you will suck me off and you want me to lick your cunt.
1919		Transcript Foster Inquiry in L.R. Murphy Perverts by Official Order (1989) 12: Sometimes ‘a party would go in the bathroom to get sucked off’.
1927		‘J.M. Hall’ Anecdota Americana I 113: Can’t you see I’m being sucked off?
1932		in G. Legman Limerick (1953) 78: There once was a lady from Arden / Who sucked off a man in a garden.
1942		P. Larkin letter 8 Nov. in Thwaite Sel. Letters (1992) 47: No, I picked up a whore who sucked me off.
1958		Southern & Hoffenberg Candy (1970) 45: My father was there with me . . . always . . . we were together . . alone. And I . . . I kept sucking him off.
1964		H. Selby Jr Last Exit to Brooklyn 226: There he is. There heis [sic]. The sonofabitch tried ta suck me off.
1974		(con. 1960s) R. Price Wanderers 226: These stories about how like he was eleven an’ got sucked off by his teacher.
1984		P. Barker Blow Your House Down 12: Don’t suck them off.
1984		B. Ellem Doing Time 128: I thought it was horrific that blokes would suck each other off, and I found the homosexuality that went on hard to accept.
1993		I. Welsh Trainspotting 268: Laura then took Spud’s long, thin cock into her mouth and started to suck him off.
1996		P. Temple Bad Debts (2012) [ebook] He’d have put on lipstick [...] and sucked off the whole caucus for Planning.
1997		G.V. Higgins Change of Gravity [ebook] [S]he offers, suck off an undercover cop, and gets herself arrested.
2000		M. Manning Get Your Cock Out 106: She felt intensely jealous as he let some teenybopper bitches down the front suck him off during ‘Blow Job Queen’.
2005		E. White My Lives 109: They wanted me to take a hustler [...] and suck him off in front of an open window.
2009		P. Temple Truth 306: ‘Abused her. How?’ ‘Made her suck you off.’.
2013		E. Beetner ‘Going in Style’ in ThugLit Feb. [ebook] ‘If I could pay that girl to suck me off again I would’.

2. (US) to toady to [suck up v. (1)].

1960, 1975

Wentworth & Flexner DAS.

3. to perform cunnilingus.

1934		H. Miller Tropic of Cancer (1963) 238: Macha calmly switches to an affair she had with a lesbian [...] ‘Then she took me to her apartment and for two hundred francs I let her suck me off.’.
1949		H. Miller Sexus (1969) 348: The only other thing to do was to play stink-finger or suck her off.

4. to act as a parasite towards.

1960, 1975		Wentworth & Flexner DAS.
2000		W.T. Vollmann Royal Family 720: He’s out in Seattle someplace suckin’ off someone else.

5. to make a fool of.

1978		S. King Stand (1990) 57: Do you think I want to suck off you, Larry? Think.
1989		C. Hiaasen Skin Tight 59: I think Maggie is sucking you off, big time.

6. (N.Z.) as a dismissive excl.: go away!

2003

McGill Reed Dict. of N.Z. Sl. 203: suck off into the sunset! Go away.