Green’s Dictionary of Slang

(US) an intensifier applicable to various words, generally implying further excellence, appeal etc, e.g. peacherino under peach n.¹ , very wonderful indeed.

1895		Courier (Lincoln, NE) 10 Aug. 10/1: Buckerino, whisker-less and rotund, Ebright, king of somewhere].
1896		Ade Artie (1963) 39: Hello, girlerino! How’s everything stackin’?
1902		C.L. Cullen More Ex-Tank Tales 43: The cabman took us over to a swaggerino road house on the South Side.
1902		Sun (NY) 12 Oct. 18/2: ‘Come on and get that ring out,’ said I and we went [...] to the hockerino joint .
1903		Ade People You Know 140: He had got the Zoop for some 80 Buckerines.
1905		G.W. Peck Peck’s Bad Boy Abroad 68: A French maid that is a peacharino.
1905		H. Green Actors’ Boarding House (1906) 256: Well, if it’s too much on the cheeserine, we can vamp out easy.
1908		Cincinnati Enquirer 17 May in Fleming Unforgettable Season (1981) 69: These two [hits] were peacherinos.
1908		Eve. Star (Wash., DC) 18 Oct. 57/3: You used to [...] toss down your little two bits for a horrible slug of third-rail booze, or a punkerino bottle of beer.
1908		‘O. Henry’ ‘Modern Rural Sports’ in Gentle Grafter (1915) 38: The pristine Hubbard squasherino of the cave-dwelling period.
1912		Day Book (Chicago) 19 June 16/1: I’m pretty strong for slang [...] I tie no can to ‘candy kid,’ I don’t mind ‘scream’ or ‘peacherine’.
1913		E.L. Warnock ‘Terms of Approbation And Eulogy’ in DN IV:i 17: peacherine. [...] peacherino. Something very fine or splendid.
1914		H. Hershfield Abie the Agent 21 Sept. [synd. cartoon strip] [of a special baseball pitch] Gee, I think he’s chuckin’ the teaseriner! [...] I’ll hafta see that teaseriner!
1917		O.O. McIntyre New York Day by Day 10 Sept. [synd. col.] Amok, graduate head hunter, has lost his appetite. the old pepperino has gone and he isn’t taking any interest in his work.
1919		A. Baer Two and Three 14 Mar. [synd. col.] [They] may demand the old floperino amendment.
1921		T. Thursday ‘Hail the Professor’ in Top-Notch 1 Sept. 🌐 The contents of a booberino don’t always turn out.
1925		J. Tully Beggars of Life 4: Forgit all that stuff. It’s bunkerino.
1934		T. Wood Cobbers 212: She was a little bonzarina.
1936		J.T. Farrell World I Never Made 97: Say, you’re looking peacherinoes. [Ibid.] 159: It’s certainly a treaterino, all right.
1939		P. Di Donato Christ in Concrete 207: Take me to that home-erino of mine-ine.
1939		H. Miller Tropic of Capricorn (1964) 180: I was a schizerino from the sole of my boots to the tips of my hair.
1942		L.A. Times 13 Sept. 107/4: ‘Hiyah, Smellerino,’ he said to Egbert.
1945		T. Handley ITMA 10 May [radio script] Botherino! It’s Mrs...
1949		Wodehouse Mating Season 115: Suppose that hunting song is a smackerino.
1955		B. Appel Tough Guy [ebook] [H]e called real havana cigars, stinkerenos [...] and sixty dollar new suits, glad-rags.
1966		J. Barr Occasional Man 134: ‘How can you work for a nig?’ ‘A what?’ ‘Jigabooreno, you know, Negro’.
1967		E. Shepard Doom Pussy 53: Hey, Smasherino, heard from Mercy Belle lately?
1967		Realist Aug. 15/2: LSD tripereeno.
1975		L. Rosten Dear ‘Herm’ 8: In no less than another $2.75 the kookerino from ‘Come Back, Little Sheba’ comes back on the line.
1978		L. Kramer Faggots 71: A whiz bang whammerino of a Ma.
1985–6		J. Stahl ‘Finnegan’s Waikiki’ in Love Without (2007) 139: I’m broke. Bustereeno.
1987		C. Hiaasen Double Whammy (1990) 274: Two thousand fresh basserinos [...] Who signs for these?
2002		Guardian G2 25 Mar. 7: The letter is written in gibberama language.
2005		H. Mantel Beyond Black 214: Oh, fuckerama! Whatever are they called?