gin, v.¹ — Green’s Dictionary of Slang

gin v.¹

1. to ply someone with gin.

1821

Egan Life in London (1869) 289: jerry, whose time had been employed in waiting upon the heroines generally, is seen ginning the fiddler, in order that the ‘harmony’ might not cease for a single instant.

2. to drink gin.

1832

Egan Bk of Sports 263: [note] But the lark being o’er — they ginned themselves at jolly Tom Cribb’s.

In phrases

gin up (v.)

(US) to drink alcohol.

1894

S.F. Midwinter Appeal 17 Feb. 4/5: As for jags, he held that he can gin up when he likes [DA].

gin v.1

In phrases

gin v.¹