MillencolinDude Share definition Flag Some random person on 404 that is an nazi OP :P MillencolinDude gaged me to death! MillencolinDude is God's best friend on 404. MillencolinDude by Apocalypse420 September 15, 2003 0 0 Get merch Get the MillencolinDude mug. Buy Now — $32.95 See more merch