Green’s Dictionary of Slang

(orig. US) drunk, or hungover.

1792		Sporting Mag. Nov. I 72/2: I am frequently much damaged before I have exhausted the contents of the fourth [bottle].
1796		T. Morton Way to Get Married in Inchbold (1808) XXV 53: Dashall: You seem a little damaged. Allspice: Yes, funny, an’t I? I got hold of a little bottle [...] it was devilish good.
1827		T. Morton A School for Grown Children IV i: Breakfast, immediately! Anything simple, for I feel rather damaged.
1830		Egan Finish to the Adventures of Tom and Jerry (1889) 187: The ‘High-bred One’ [was] greatly damaged in his upper works.
a.1856		Burlington Sentinel in Hall (1856) 461: We give a list of a few of the various words and phrases which have been in use, at one time or another, to signify some stage of inebriation: [...] damaged.
1933		‘William Juniper’ True Drunkard’s Delight.
1960, 1975		Wentworth & Flexner DAS.