1969 L. Chester et al. 480 Of all the performances.., Thurmond's was by far the most memorable, surpassing even his own high standards of bully-ragging, pig-ignorance, and splenetic irrelevance.
1990 Dec. 23/3 The ‘Sun’, appears to exalt pig-ignorance as a way of life.
2009 O. D. Edwards in D. B. Forrester & D. Gay xiii. 187 We have dismissed Bigotry from our watchtowers only to enthrone Mammon warmly clad in pig-ignorance.