Capp (k?p), Al Originally Alfred Gerald Caplin. 1909-1979. American cartoonist noted for his comic strip L’il Abner (1934-1977).American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Capp (kæp) n (Biography) Al, full name Alfred Caplin. 1909?79, US cartoonist, famous for his comic strip Li’l AbnerCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014