Cookie Cull Share definition Flag (kʊk'ē'kŭl) The act of deleting/removing once's history, or browsing data, on the net. "Hey dude, u better not forget to cookie cull, or else u'll be in trouble if ur mom finds out what u've been up to on the internet!" Cookie Cull by K-Camisado September 25, 2011 0 0 Get merch Get the Cookie Cull mug. Buy Now — $32.95 See more merch