Green’s Dictionary of Slang

shaved adj.

drunk.

1838		T. Haliburton Clockmaker II 112: Who should I see aleanin’ up against [the side-table] but Mr. Bobbin, pretty considerable well shaved, with a glass o’ grog in his hand.
1844		Stirling Obs. 19 Sept. 3/3: [from US press] Drunkeness Defined — [...] high-corned, cocked, shaved, disguised, jammed, [...] smashed, [...] snubbed, [...] battered [...] soaked, [...] bruised.
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: [...] shaved.

In phrases

half-shaved (adj.)

(US) drunk.

1818		M.L. Weems Drunkard’s Looking Glass (1929) 72: Returning half-shaved, from a regimental muster, he gave his horse the lash [...] and dashed with such violence against a tree, that his brains gushed out.
1821		R. Waln Hermit in America on Visit to Phila. 2nd series 132: Shaves and scrapes in the morning, and scrapes half shaved in the evening.
1838		T. Haliburton Clockmaker II 172: Jack was considerable in the wind, pretty nearly half shaved.
c.1850		F.M. Whitcher Widow Bedott Papers (1883) 354: I’ve seen that man half shaved on cider afore breakfast in the mornin’.