Green’s Dictionary of Slang

choppers n.

1. the jaw.

[UK] ‘Battle’ in Fancy I XVII 406: The Chatamites looking blue, almost thunderstruck, and their choppers as long as ‘Paterson’s Road Book’.
[UK]Egan Bk of Sports 26: They were all reduced to dummies [...] their choppers as long as Patterson’s Road Book. [Ibid.] 206: When it was clearly ascertained that Sam was the conqueror, some of their choppers dropped down to the fourth button on their waistcoats.

2. rarely in sing., the teeth, occas. false; thus china choppers, store choppers, false teeth.

[US]J. Archibald ‘Dying to See Willie’ in Popular Detective Mar. [Internet] He nearly lost his store choppers when he took a gander at the corpse.
[US]N. Algren Little Lester’ in Entrapment (2009) 97: They’re fixin’ a loose chopper so’s I won’t have to set in the chair downstairs with a toothache.
[US]A. Kober New Yorker 5 Nov. 86: He made with the choppers [bared his teeth] [W&F].
[US]N. Algren Walk on the Wild Side 59: Look at them choppers [...] In six months the clown won’t have a tooth in his head.
[US] ‘Ed Lacy’ Lead With Your Left (1958) 16: Wales smiled, he had neat even teeth—and all of them store choppers.
[US]Mad mag. Sept.–Oct. 8: False Teeth. Attention! Shoppers for Choppers.
[US]Mad mag. Jan. 49: The tip of a butt he had snagged in his choppers.
[UK]N. Smith Gumshoe (1998) 22: Taffy [...] asked me what I wanted, gnashing the false choppers.
[US] in Maledicta VIII 236: Without a good set of choppers, you can’t do dick-shit in this town.
[UK]I. Welsh Trainspotting 214: The rabbit-toothed punter [...] sidles up tae me — You wir his brother, he sais, choppers hingin oot tae dry.
[UK]Guardian 15 Jan. 12: What a fine set of choppers!
[Aus]S. Maloney Sucked In 91: ‘Teeth in the upper jaw were long gone, indicating the corpse wore dentures’ [...] ‘Shortish, right age group, probably chopper wearer’.
[US]C. Goffard Snitch Jacket 14: Gaunt and bent, with gapped fanglike choppers.
[US]G. Pelecanos (con. 1972) What It Was 28: That big dog in the cartoons, the one with the scary choppers and the spiked colar.
[UK](con. 1980s) I. Welsh Skagboys 28: [I] protrude my choppers, go bug-eyed and pit oan a George Formby singing voice.

3. (US black) the legs, esp. the thighs.

[US]Wentworth & Flexner DAS.