Green’s Dictionary of Slang

a person with poor, uneven teeth; also as adj.; thus snaggle-toothed adj.

[1813		Chester Chron. 4 June 4/2: [of a horse] Sure-footed, sleek [...] Spanker [...] has neither sick, spleen, sitfast, snaggle teeth].
1824		Morn. Advertiser (London) 28 Oct. 3/1: He called her a snaggle-toothed old b— .
1834		Bells Wkly Messenger 26 Jan. 6/1: Mr Smith took the liberty of [...] calling her a ‘snaggle-toothed old cat’.
1837		‘Kate Looney’ in Sam Weller’s Favorite Song Bk 3: All th’ gals round the world to St. Giles’ I’ve seen. / Neither bandy-leg’d Molly, nor snaggle-tooth Minny [....] my heart couldn’t move.
1843		W.T. Thompson Major Jones’s Courtship (1872) 124: A little thick-lipped, blinky-eyed, snaggle-toothed, sandy-haired man.
1851		Western Times 18 Jan. 6/1: The defendent [...] disdainfully called him a ‘snaggle-tooth’d puppy’.
1858		Yorkville Enquirer (SC) 22 Apr. 4/2: We do not wish to pollute our columns with such trash [...] snaggle-tooth — box-ankled — goggle-eyed — nigger-lipped — soft-headed — long-eared [etc].
[1860		Hotten Dict. of Modern Sl. etc. (2nd edn) 220: snaggle teeth, uneven and unpleasant looking dental operation].
1873		Stamford Mercury 26 Sept. 3/1: [A]n old snaggle tooth amendment gentleman, 65 years of age.
1889		Kentish Indep. 26 Jan. 5/5: The latter called witness ‘old snaggle-tooth’ and the defendent struck her in the face.
1894		Illus. Police News (London) 10 Nov. 2/2: A lantern-jawed, boss-eyed, snaggle-toothed, villainous-looking fellow.
1906		J.W. Carr ‘Words from Northwest Arkansas’ in DN III:iii 157: snaggle-tooth, n. A person having missing, broken, irregular, or otherwise imperfect teeth. ‘You’ll be a snaggle-tooth before you’re twenty, if you don’t quit eating so much candy.’ ‘He’s an old snaggle-tooth.’.
1909		J. Ware Passing Eng. of the Victorian Era 227/2: Snaggle-tooth (Street). Woman of lower order, generally a shrew, who, lifting her upper lip when scolding, shows an irregular row of teeth.
1910		P.W. Joyce Eng. As We Speak It In Ireland.
1920		J.A. Lomax Songs of the Cattle Trail 43: [song title] Snagtooth Sal.
1958		(con. WWII) F.I. Gwaltney Heaven and Hell 64: That snaggle-toothed little devil.
1961		J. Kirkwood There Must Be a Pony! 18: I [...] knocked my two front teeth out. I looked like Snaggletooth Joe.
1965		B. Jackson Get Your Ass in the Water (1974) 47: A snaggle-tooth bitch jumped up and say, ‘Run that twister through his jivin’ ass!’.
1979		D. Maitland Breaking Out 169: You are a bloody lop-eared, snaggle-toothed, drippy faced, [...] fart-faced flip of a fucking galah!
1991		W.T. Vollmann Whores for Gloria 103: The pregnant snaggletooth girl in the Coral Sea.
2010		Times (Munster, IN) 13 Jan. PA4/1: One of the men was heavyset and the other was ‘snaggle tooth’ with ‘teeth clearly out of place’.