Green’s Dictionary of Slang

jerk-off n.

[jerk off v.]

1. (US) an act of masturbation.

[US] in Read Lexical Evidence 63: Try a jerk-off.
[US]Goldin et al. DAUL 110/1: Jerk-off, n. The act of masturbation; a chronic masturbator.
[US]T. Southern Blue Movie (1974) 77: I had fantasies, wet dreams, a million jerk-offs, you name it, about that broad for the last twenty years!

2. (US) a useless, despised person, a lazy incompetent.

[US]P. Di Donato Christ in Concrete 127: He was the half-pint jerk-off, he was godson, he was the titty-drinker.
[US]D.W. Hamilton ‘Pacific War Lang.’ in AS XXII:1 Feb. 55: jerk, jerk-off. A goof.
see sense 1.
[US](con. WWII) J. Jones Thin Red Line (1963) 58: He’s a jerkoff. A mothergrabbing jerkoff.
[US] M. Scorsese Mean Streets [film script] I borrow money from you, because you’re the only jerk-off around here who I can borrow money from without payin’ back, right? You know, ’cause [...] that’s what I think of you: a jerk-off.
[Aus]D. Maitland Breaking Out 158: ‘Now you listen to me, you little jerk-off,’ he snarled.
[UK]W. Boyd ‘On the Yankee Station’ in On the Yankee Station (1982) 118: What’re you fuckin doing here, jerk-off?
[UK]J. Cameron Vinnie Got Blown Away 86: Course you jerk-off, you fucking know who it is.
[US]C. Hiaasen Nature Girl 170: Who was that jerk-off with the Band-Aids on his hand?
[US](con. 1973) C. Stella Johnny Porno 64: Your name is whatever the fuck I call you, jerkoff.
[UK]I. Welsh Decent Ride 239: The jerk-off screams and falls to the ground.
[US]D. Winslow The Force [ebook] Hey, jerkoff, you took a left, you should have gone right.

3. (US) a fraud, a pretence.

[US]Sepe & Telano Cop Team 161: Wadda ya say we go up and find out if this whole story is a jerk-off.
[US]S. King Different Seasons (1995) 468: ‘No jerk-off, daddy-O,’ Chris said.