Green’s Dictionary of Slang

(US) the proprietor of an illicit drinking establishment; thus blind pig v., to run such an establishment; blind-pigging n.

1893		Bismarck Wkly Tribune (ND) 15 Sept. 5/3: Joseph McComb, a Hunter blind pigger, is in the limbo.
1899		J.W. Davis Gawktown Revival Club 55: Compared with this business, blind-pigging is honorable and boot-legging the dizziest heights of respectability.
1899		Devil’s Lake Inter-Ocean (Dakota, ND) 11 Aug. 5/4: Five blind-piggers at Devil’s Lake were arrested and their places of business closed.
1902		Princeton Union (MN) 15 May 5/3: Blind piggers cannot find much satisfaction in the act of 1901 [...] making provisions for the punishment of parties who keep a blind pig.
1909		Bismarck Dly Trib. (Dakota, ND) 7 Aug. 3/3: In North Dakota the blind pigger [...] sells more after 11 o’clock at night [...] he sells just as much on Sunday as the people will buy' he sells to minors, women, drunkards.
1917		D. Pickett Cyclopedia of Temperance 55: The blind pigger in wet territory can procure his liquor shipments without exciting suspicion .
1949		Monteleone Criminal Sl. (rev. edn) 26: blind pig To run an illicit liquor establishment.
1993		I.L. Allen City in Sl. (1995) 72: Blind pig was first recorded in 1887; blind pigger, the proprietor, was in use by 1894.