Mexican Banzai Challenge Share definition Flag The act of taking copious amounts of laxative and eating vast amounts of taco bell in one sitting. Dude Larry almost died last night from the Mexican banzai challenge. Mexican Banzai Challenge by PinHeadLarry July 20, 2014 0 0 Get merch Get the Mexican Banzai Challenge mug. Buy Now — $32.95 See more merch