Green’s Dictionary of Slang

no shit! excl.

[shit n. (4a)/crap n.1 (4)]

1. an excl. of surprise (‘really?’ ‘honestly?’) or ironic surprise (‘you don’t say!’).

[US]A. Bessie Men in Battle 197: ‘They’re going to withdraw the volunteers from Spain.’ ‘No shit.’.
[US] in T. Shibutani Derelicts of Company K (1978) 242: Haw! Haw! No shit! [Ibid.] 263: No sheet? Dey gonna bust da instructors?
[US]L. McMurtry Horseman, Pass By (1997) 131: ‘I don’t know what you’re talkin’ about.’ ‘No shit?’ he said.
[US]V.E. Smith Jones Men 17: No shit? How many?
[US]G.V. Higgins Patriot Game (1985) 38: This is a secret? The lot’s full at eight-thirty? No shit.
[US]S. Morgan Homeboy 321: Rings looped a lazy brow. ‘No shit?’.
[US]C. Hiaasen Nature Girl 16: ‘But I got the big boss to make a call.’ ‘No shit?’.
[US]A. Steinberg Running the Books 41: ‘Hey, ya hear Fitzy’s taking some heat?’ ‘Really? For . . .’ ‘Yup, that.’ ‘No shit?’.
[US]D. Winslow The Force [ebook] ‘Madeleine says, “You have to get him out of here.” No shit, we think, because this is going to be a major embarrassment’.

2. (also no crap!) an excl. of affirmation, I mean it, this is the truth.

[US]Kerouac letter 19 June in Charters II (1999) 133: But I’m still not a lecher. No shit, I stay home and write and think most of the time.
[US]J. Gelber On Ice 271: ‘You were a target because you’re black.’ ‘That’s no shit!’ Frank agreed.
[US]P. Thomas Down These Mean Streets (1970) 230: Hey, Piri, no shit, you sure these gringos ain’t haras?
[US]D. Goines Inner City Hoodlum 79 ‘No shit, Johnny,’ Buddy replied.
[US](con. 1969–70) D. Bodey F.N.G. (1988) 297: ‘What kind of joint is this place?’ ‘It’s a field evac unit for short-timers.’ ‘No shit?’ ‘No shit.’.
[US]D. Woodrell Muscle for the Wing 93: You know I love you an that’s no shit, neither, baby.
[US]C. Hiaasen Stormy Weather 6: ‘No shit?’ ‘Yeah, honey, no shit.’.
[US]J. Ridley Love Is a Racket 85: My eyes asked a question, and he answered: ‘Yep, no shit, Jeffty.’.
[Aus]L. Redhead Cherry Pie [ebook] ‘Look at this [...] A couple of pages from the end, some photos are gone. [...]’ ‘No shit. You’re turning into a hell of a sidekick, babe’.
[US]T. Black Ringer [ebook] n.p.: Davie points again, at me this time. ‘Are you away with the bloody pixies, son?’ There’s froth on the sides of his mouth when he’s finished. No shit, there is.