lameduck Share definition Flag A name for someone who is so fucking funny the whole chat will just say LOL. They are a fucking genius and you will lose an argument against a lameduck 100% of the time. LOL lameduck thats so funny lameduck by crazefact April 9, 2021 0 0 Get merch Get the lameduck mug. Buy Now — $32.95 See more merch