Green’s Dictionary of Slang

torpedo n.2

1. its shape.

(a) (US) a pointed woman’s shoe.

[US]R. Lardner ‘The Water Cure’ in Gullible’s Travels 169: He blushed and the Wife sunk my shin with a patent-leather torpedo.

(b) a fat marijuana cigarette.

[US]cited in Spears Sl. and Jargon of Drugs and Drink (1986).
[US]E. Shrake Strange Peaches 207: Using five or six cigarette papers, Buster was rolling an Austin Torpedo.

(c) (US teen) a large breast.

[US]W. Murray Sweet Ride 89: ‘Aw,’ Mousie said [...] angrily brushing sand out from between her torpedoes.
[US]LaBarge & Holt Sweetwater Gunslinger 201 (1990) 62: You’ve also got great torpedoes.

(d) (drugs) a cigarette made of crack cocaine and marijuana.

[US]S. King Thinner (1986) 76: Houston was bombing his brain with big white torpedoes on a regular basis.
[US]ONDCP Street Terms 21: Torpedo — Marijuana and crack.

(e) (US) a large, well-filled sandwich.

[US]‘Heat Moon’ Blue Highways 329: I ate a grinder — elsewhere called a hero, hoagie, poorboy, submarine, sub, torpedo, Italian.

(f) (US teen) a penis that is wide at the base but grows narrower as it reaches the head.

[[Aus]Sydney Sportsman (Surry Hills, NSW) 30 Nov. 8/3: ‘Gus was showing us how his torpedo worked [...] He can blow up anything with it.’ Then ma took her into the back room and spanked her mighty hard].
OnLine Dict. of Playground Sl. 🌐 torpedo n. a male penis which is wide at the base and gradually becomes skinnier as you move toward the head.

(g) a large cigar.

[Scot]L. McIlvanney All the Colours 56: Lyons stopped to light a torpedo [...] A great white cloud plumed skywards.

2. its ‘explosiveness’.

(a) (US) a thug, a hoodlum, the ‘weapon’ used by a gang boss and sent out to destroy enemies.

[US]Hostetter & Beesley It’s a Racket! 241: torpedo — A professional gunman or bomb tosser.
[US]E. Hoffman Price ‘Revolt of the Damned’ in Double-Action Gang June 🌐 Any torpedo who had killed Rod Northup would sooner or later brag about it.
[US]Mezzrow & Wolfe Really the Blues 101: He was Louie the Wop’s brother; until he made his exit he was head torpedo for the mob.
[US]S. Bellow Augie March (1996) 81: Sluggers and bouncers, punks with ambition to become torpedoes.
[UK]R. Cook Crust on its Uppers 133: The torpedo who was driving smelled strongly of weinbrand.
[US]D. Ponicsan Last Detail 56: You pop in here [...] with two torpedoes, what do I think? I’m ready to have a heart attack.
[US]J. Ciardi Good Words 282: Torpedo [...] A gang killer, a hit man, a thug.
[US]S. Morgan Homeboy 97: I tapped Truck Infante for one of his teamster torpedoes.
[US]A. Kleinzahler Cutty, One Rock (2005) 14: An ugly little torpedo named Joseph ‘Joe Jelly’ Giorelli.

(b) a drink containing chloral hydrate.

[US]‘Goat’ Laven Rough Stuff 105: My intention had been to shoot this sucker with a torpedo (dose of chloral).

In compounds

torpedo juice (n.) [‘a combination of bush beer and toddy and acquires its name from its lethal effect. The original torpedo juice was the neat alcohol extracted from torpedoes during the war by American servicemen and sometimes mixed with local bush beers’ (The Guardian, 26 September 1961)]

(orig. milit.) extremely strong, home-distilled liquor.

[Aus]Barrier Miner (Broken Hill, NSW) 23 Sept. 7/1: Groups of drinkers all get drunk off one bottle of ‘plonk’ or ‘bombo’. They drink half the bottle of wine and refill it with ‘torpedo juice’.
E.J. Gaines ‘Talking Under Water: Speech in Submarines’ in AS XXIII:1 38: torpedo juice. The alcohol used as fuel in a steam-driven torpedo; by extension, the term is used to refer to any alcohol or alcoholic beverage.
[Aus](con. 1940s) T.A.G. Hungerford Sowers of the Wind 189: We’ll just have a quiet little party [...] with some Jap whisky and a few bottles of torpedo-juice.
[US]H. Searls Hero Ship 59: What about that torpedo juice Foghorn makes?
[US](con. WWII) E.H. Hunt Undercover 27: I would [...] bring back a five-gallon tin of 200-proof torpedo alcohol together with a few cans of grapefruit juice. So popular were these ‘torpedo cocktails’ that [etc].
[US]T. Dorsey [bk title] Torpedo Juice.