koomajaden Share definition Flag a word used to express great distress. can be used in substitution for: shit, fuck, pissant, nigger, asshole, etc. That guy just stole my bike, KOOMAJADEN! koomajaden by ultimolongshot June 27, 2010 0 0 Get merch Get the koomajaden mug. Buy Now — $32.95 See more merch