The use of an entertainment medium, especially comics, to proselytize a religious viewpoint to the exclusion of all else, usually resulting in a mediocre product. Named after Christian "cartoonist" Jack Chick, creator of those ubiquitous little religious tracts.
"I loved B.C. back when I was young, but in recent years, it's descended into nothing but preaching and jackchickery."
by Angry cartoonist April 9, 2007