uno +4 Share definition Flag the most powerfull card in humanity its banned from wars everywhere except the us its so powerfull the nazis are trying to revive a certain mustache man with it nazi: hey mustache lad mustache lad: ye nazi: uno +4 mustache lad: f**k u uno +4 by issis6 October 19, 2021 0 0 Get merch Get the uno +4 mug. Buy Now — $32.95 See more merch