dickishnish Share definition Flag Dickishnish - the action of being an asshole and rubbing off on those around you also causing them to be assholes. When Pauline is around Robin, the dickishnish always turns her in to a different person. dickishnish by NE1469 May 9, 2013 0 0 Get merch Get the dickishnish mug. Buy Now — $32.95 See more merch