Green’s Dictionary of Slang

drunk, tipsy.

[1792		Sporting Mag. Nov. I 100/2: The rosey-gilled old tipler demanded the reason].
1905		‘Central Connecticut Word-List’ in DN III:i 17: rosy, adj. Drunk.
1911		J. Masefield Everlasting Mercy 1: I learned with what a rosy feeling / Good ale makes floors seem like the ceiling.
1934		‘J.M. Hall’ Anecdota Americana II 30: Quite a party was going on. After the tenth drink or thereabouts everybody was feeling Rosy.
1941		M. Prenner ‘Drunk in Sl.’ in AS XVI:1 Jan. 70/1: rosy.