Huge Dump Share definition Flag A defecation session that requires heavy dilation of the anus that lasts anywhere from 24 to 72 hours. "Hey man, where have you been?" "Whoah dude, I just took a huge dump." Huge Dump by kuroifuragu February 3, 2010 0 0 Get merch Get the Huge Dump mug. Buy Now — $32.95 See more merch