Green’s Dictionary of Slang

1. tipsy, mildly drunk.

1843		Knickerbocker (NY) XXII 366: We were never ‘groggy’, [...] ‘swizzled’ or ‘tight’, but once .
1848		North-Carolinan (Fayetteville, NC) 18 Nov. 1/6: Drunk [...] swizzled, swiped [...] smoked.
1881		North Wales Chron. 30 Apr. 3/6: ‘What is swizzled?’ ‘Just drunk enough to think you can lift a barrel of salt’.
1890		Dly Gaz. for Middlesborough 3 July 4/2: This chap agreed not to go on a spree oftener than once a fortnight, but has been swizzled half his time.
1894		Burlington Free Press (VT) 14 Mar. 7/1: ‘Do you mean to say that I came home drun?’ [...] ‘No not exactly drunk [...] You were not drunk but swizzled’.
1918		G. Frankau One of Them 65: So some seek solace in divorce / [...] / Some quaff th’embittered cocktail, or the rum Whose swizzled headaches heavy on to-morrow weigh .
1934		F. Nebel ‘Take It and Like It’ in Ruhm Hard-Boiled Detective (1977) 100: ‘He must have been gawd-awful drunk.’ [...] ‘Swizzled’ said Moriarty.
1941		M. Prenner ‘Drunk in Sl.’ in AS XVI:1 Jan. 70/1: swazzled. [Ibid.] swozzled.
1947		B. Schulberg Harder They Fall (1971) 21: I was slightly swizzled when she came in.
1976		R. Morrieson Pallet on the Floor 111: Chain smoking and half-swozzled every night.

2. (US) obsessed, infatuated.

1957

G. Metalious Peyton Place (1959) 185: He was hog-tied and completely swozzled. He would wait for Connie MacKenzie if it took her fifty years to make up her mind.