Green’s Dictionary of Slang

swizzle v.¹

to drink.

1832		Satirist (London) 12 Feb. 51/3: Then toss off your lush, Canizzaro! / St. Alban’s, come swizzle away!
1847–81		Halliwell Dict. Archaic and Provincial Words II 841/2: Swizzle [...] to drink, or swill.
1869		Leeds Times 10 July 3/6: With the help of a third tippler, the ale was ‘swizzled’.
1878		Leeds Times 3 Aug. 3/6: Colleagues [...] had again got into a certain room in the Town hall, swizzled his worship’s liquor, and really got drunk.
1895		South Wales Echo 1 Aug. 2/6: If you want to swizzle on the Sabbath you must buy your own drink.
1903		A. McNeill Egregious Eng. 155: There he gorges and swizzles till the warning bell advises him of the departure of his train [OED].
1919		A. Baer Two & Three 17 June [synd. col.] The old-timer who swizzled, guzzled and snoozled the suds was a weak citizen.
1942		W. Winchell On Broadway 3 Jan. [synd. col.] Some of the more public-spirited rumpots gave up Scotch and swizzled rye and bourbon [...] to support home distilleries.