assnuck Share definition Flag Assnuck: Noun; Person living in canada that is a fool or an ass, or who makes an ass of themselves. Derived from the word Canuck. That assnuck just stole my hockey puck, fucker. assnuck by ANewRetrospect February 14, 2006 0 0 Get merch Get the assnuck mug. Buy Now — $32.95 See more merch