Green’s Dictionary of Slang

drunk, tipsy.

1860		Hotten Dict. of Modern Sl. etc. (2nd edn).
1864		London Standard 13 Dec. 3/3: The slang synonyms for mild intoxication are [...] Bosky [...] Foggy [...] Kisky.
1874		Kent & Sussex Courier 9 Dec. 6/1: One [...] accuses one of the pupil teachers (of the feminine gender) with writing a treatise on Swipes, Bunker or Cat-lip, and I must necessarily infer that she must have a proneness for getting Buffy and Kisky.