Green’s Dictionary of Slang

chisel n.

1. a swindler.

[UK]Dickens Bleak House (1991) 311: There is much reference to Mr. Snagsby whether he means Carrots, or the Colonel, or Gallows, or Young Chisel, or Terrier Tip, or Lanky, or the Brick.
[Aus]Rockhampton Bull. (Qld) 1 Oct. 3/2: It was but a simple and primitive socioety [...] when men caled each other Addlehead, Baldhead, Barebones, Bitch [...] Chisels, Dolt [...] Fogey [...] Gander [...] Maggot, Mangy, Muff, Muzzy.
[Aus]H. Lawson ‘A Respectable Young Man’ in Roderick (1972) 270: The landlady — a regular old chisel — gave him notice to leave a vacancy.

2. (also chizzle) a swindle, a deception.

[Ind]Delhi Sketch Bk 1 Nov. 125/1: [I]n spite of that little chizzle about the pice, you shall find me D. V. a credit to your establishment,.
[US] in C.R. Cooper Here’s To Crime in Hamilton Men of the Und. 221: Everything’s chisel in this business.
[UK]G. Burn Happy Like Murderers 185: Making a monkey out of. [...] The chisel. The blag.

3. (Aus. teen) a shoe style favoured by a sharpie n.2

[Aus](con. 1960s-70s) T. Taylor Top Fellas 19/1: ‘Chisels’, kind of like Points but with the tips chopped off.

In phrases

on the chisel

(US) cheating, usu. for financial gain.

[US]W.R. Burnett Nobody Lives for Ever 37: It would be a cinch to get her to come to L.A. No matter what Jim said, she was strictly on the chisel.
[US]W. Burroughs letter 4 June in Harris (1993) 130: He is strictly on the chisel though he has gold and always mooching junk.
[US]R. Chandler Playback 51: He’d be pretty sore if I was on the chisel.

SE in slang uses

In compounds

chisel-chin (n.) [supposed resemblance]

(US) one whose lower jaw protrudes.

[US]Univ. Missourian (Columbia, MO) 25 Sept. 1/2: You, pop-eyed, lop-eared, slab-sided, hollow-headed, flea-bitten, hatchet-faced, chisel-chinned, fungus-grown simpleton.
in Battaglia Resp. to PADS 20 [DARE].
[US] in DARE.
J.O. Killens Cotillion 117: Here she was, giving her very all, chisel-chinned and bow-of-legs, her bottom built so close to the earth she literally bounced along.
[US]Wkly World News 2 June 14/1: Chisel-chinned Clint Eastwood denies rumors that he’s about to get hitched to his long-time lady Sondra Locke.
Vegetarian Times Aug. 64: Author William Dufty showed his evolution — from a fat slob with a lecherous smirk to a chisel-chinned Adonis with a thoughtful expression.
A.M. Horman Life in the Slipstream n.p.: Kramer was a big, chisel-chinned kid from New Jersey with a finishing kick any sprinter would die for.