Green’s Dictionary of Slang

kilkenny n.1

[proper name Kilkenny, a county and city in Leinster in the Republic of Ireland; frieze is a variety of coarse woollen cloth usu. made in Ireland]

a frieze coat.

[UK]B.E. Dict. Canting Crew n.p.: Kilkenny c. an old sorry Frize Coat.
[UK]New Canting Dict. [as cit. c.1698].
[UK]Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
[UK]Grose Classical Dict. of the Vulgar Tongue.
[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.