Green’s Dictionary of Slang

1. (orig. Scot., the little finger; thus US) pinky-crooker n., an affected person, a poseur.

1808		Jamieson Etym. Dict. Scot. Lang. n.p.: Pinkie, the little finger; a term mostly used by children, or in talking to them.
1848		Bartlett Dict. Americanisms.
1872		rhyme, in Schele De Vere Americanisms 87: Pinky, pinky, bowbell, / Whoever tells a lie / Will sink down to hell, / And never rise up again.
1915		G. Bronson-Howard God’s Man 198: Pipe the hock-rock on the pinky.
1933		M. Marshall Tramp-Royal on the Toby 25: Did I sip it genteelly with my pinkie up? Did I!
1938		W. Winchell On Broadway 15 Nov. [synd. col.] Billy Livingston of the Lifted Pinky Set.
1947		C. Woolrich Waltz Into Darkness (1995) 256: The pinkey of her hand [...] rose and descended again, as he watched.
1949		R. Chandler Little Sister 246: He [...] ran his pinkie along his lower lip.
1958		Southern & Hoffenberg Candy (1970) 74: P.c., standing for pinky cheater, was hospital slang for the rubber fingers gynecologists wear during digital examinations.
1959		E. De Roo Young Wolves 7: Pa pretended to be ultra polite and poised a stiff pinkie.
1968		N. Heard Howard Street 17: Her fingers played over the handle, her pinkie touched the button.
1969		‘Iceberg Slim’ Pimp 31: The huge zircon on his right pinky glittered under the street lamp.
1974		(con. 1940s) E. Thompson Tattoo (1977) 48: He had a diamond ring on his stubby hairy pinkie.
1978		P. Theroux Picture Palace 87: The fairies walking along Commercial Street with their pinky fingers linked.
1981		H. Gould Fort Apache, The Bronx 270: The pinky ring crowd. Stout, saturine men bulging out of four hundred dollar suits.
1983		J. Byrell (con. 1959) Up the Cross 41: ‘Bring as much hard-earned as you can lay a pinkie on’.
1988		D. Woodrell Muscle for the Wing 8: Manicured fingers twitched in obvious attempts to covertly twist [...] pinkie rings so that the flashy side was down.
1989		M. Amis London Fields 24: People would still be brooding about accents and cocked pinkies.
1997		C. Hiaasen Lucky You 310: He stirred the gin with a manicured pinkie.
1999		P. Temple Black Tide (2012) [ebook] I could [...] note the large ruby ring, turned outward, on the pinky of Kukri Dawn’s jockey.
2001		N. Barlay Hooky Gear 129: We dream to be flash an smart an wedge up an totally the king of the hill without even askin, without even tryin, without liftin a pinkie.
2005		J. Stahl I, Fatty 38: She waved goodbye with her pinky.
2010		IOL News (Western Cape) 20 Jan. 🌐 He manages to twirl you twice around his pinky without breaking a sweat.
2014		R.W. Hart ‘How to Make the Perfect New York Bagel’ in ThugLit Jan. [ebook] The thick gold ring on his pinkie.
2018		IOL News (Western Cape) 7 Nov. 🌐 Gigaba apologises ‘unreservedly’ for waving pinky finger at Ndlozi.
2019		C.D. Rosales Word Is Bone [ebook] [She] raised her bottle up with a pinky sticking out.

2. (US gay) a small penis, thus insult Miss Pinkie, a gay man with a small penis [resemblance to sense 1].

1964		H. Selby Jr Last Exit to Brooklyn 47: Harry continually grabbed her by the ears and rubbed his crotch and tolder he had a nice fat lob forer to suck, and Georgette sat back on her throne and threw her head to the side and told him she wasnt interested in boys, Miss Pinkie.
1972		B. Rodgers Queens’ Vernacular 185: small penis [...] pinkie.

3. (US gay) the erect penis [resemblance to sense 1].

1972

B. Rodgers Queens’ Vernacular 103: erection [...] pinky.