Cornpacker Share definition Flag "Cornpacker is a derogatory term for Gay Iowans." Stephen Colbert testifying in Congress to Steve King (R-Iowa). Turns out my nephew from Des Moines is gay, what a cornpacker. Cornpacker by Ian OK September 25, 2010 0 0 Get merch Get the Cornpacker mug. Buy Now — $32.95 See more merch