Dirty Kaczynski Share definition Flag The act of defecating in a small package and mailing it to a person for them to unwillingly smell stank shit. I am goin to send my friend mike a dirty kaczynski when he goes to spain! Dirty Kaczynski by Carlos Hunter November 22, 2005 0 0 Get merch Get the Dirty Kaczynski mug. Buy Now — $32.95 See more merch