Green’s Dictionary of Slang

Norwegian; thus Scandinavian.

1906		Minneapolis Jrnl (Minn.) 4 Feb. 2/4: Ay know t’ree yolly Norsky men, yes, sir, yu bet Aye du.
1930		W.R. Burnett Iron Man 62: [of a Swede] I can get you a match with that Norsky bum that Mike almost picked.
1944		‘F. Bonnamy’ A Rope of Sand (1947) 167: That Norski crowd is even more solid than most.
1987		B.S. Cain Amer. from Sweden 60: AV, the lone Swede, exchanged good-natured ethnic jokes with the Norwegians. ‘How long do you think you’re gonna last in this Norski town, AV?’.