Kilgallon Share definition Flag A Kilgallon is a pre-metric measure of liquid (typically beer) which is equivalent to approximately 4000 quarts. Fark my head is throbbing today. Must have drunk a Kilgallon of Dutch style Pilsner last night Kilgallon by Jakarta Gentleman December 11, 2017 0 0 Get merch Get the Kilgallon mug. Buy Now — $32.95 See more merch