Green’s Dictionary of Slang

1. (US) an immigrant from Central Europe, e.g. a Hungarian, Lithuanian, Slav, Pole; thus hunky town, the area of a town in which such immigrants congregate.

1896		N.Y. Herald 13 Jan. n.p.: The average Pennsylvanian contemptuously refers to these immigrants as ‘Hikes’ and ‘Hunks’. The ‘Hikes’ are Italians and Sicilians. ‘Hunks’ is a corruption for Huns, but under this title the Pennsylvanian includes Hungarians, Lithuanians, Slavs, Poles, Magyars and Tyroleans [R].
1927		‘J.M. Hall’ Anecdota Americana I 31: An Armenian was being examined by the draft board. The physician, looking over the hunk’s penis for traces of veneral disease, pulled back the foreskin.
1934		B. Traven Death Ship 283: He who is not fit to join the union is looked upon as a Hunk even if born on the Emerald or right north of Aberrrdeen [sic].
1977		Maledicta 1:2 134: Hunk and hunky, shortened from Hungarian, and blended with Bohemian to produce bohunk, may have begun as simple, derogatory ethnic terms for persons of eastern European origin; but they were soon transferred to the occupation typical of east Europeans in large American cities – ‘factory hand,’ with connotations of general obtuseness and stupidity.
1977		J. Sayles Union Dues (1978) 232: Essenyi was a Hungarian, Jimmy called him the Hunk.
1989		H. Rawson Dict. of Invective (1991) 204: hunk (or hunkey, hunkie, hunky). Originally, from the 1890s, an immigrant from east-central Europe, but today, usually a descendant of these immigrants; a bohunk.

2. see hunky n. (2)