Green’s Dictionary of Slang

1. (also blow it) vi. to eat and/or drink to excess; occas. as blow oneself out; thus blown out.

1821		Hereford Jrnl 3 Oct. 4/3: A Knight of the Rainbow [...] always in training at his master’s plentiful board, and being well blowed out, and having little work to do [etc].
1840		R. Barham ‘The Babes in the Wood’ in Ingoldsby Legends (1842) 193: In the dog-days, don’t be so absurd / As to blow yourselves out with Green-gages!
1900		Bulletin (Sydney) 6 Jan. 12/2: I saw these six afterwards looking as if they had been blowing themselves out with tea and A.J.C. ‘cyke,’ very subdued and disconsolate.
1916		G. Squiers Skitologues 13: So get blown out without a doubt, / On boiled beef and carrots.
1942		C.R. Bond 12 Feb. in A Flying Tiger’s Diary (1984) 98: Several of us went on a binge tonight [...] I really blew it.

2. vtr., to treat, to feed a third party.

1819		P. Egan Key to the Picture of the Fancy going to a Fight 17: [H]e has [...] blowed out his buffer well with the last mag left in his clie.
1832		Satirist (London) 8 Jan. 14/1: [W]henever they’d drop in at his lush room in the Adelphi, he ’d blow out their skins with half-and-half, and afterwards rub ’em down with a quattern of Hodge’s.
1841		‘Lord Bateman’s Long Jock’ in Gentleman’s Spicey Songster 21: She took him down unto the cellar, / Where she blow’d him out with wine.
c.1844		Coal Hole Companion in Bold (1979) 92: The pawnbroker is sure to win / The blowens he blows out with gin.