chubberduckery Share definition Flag The act of taking a rubber ducky and shoving it into a fat man's ass until it squeaks.obese pudgy hefty I couldn't sleep last night because of the sounds from my neighbor's chubberduckery. chubberduckery by Bitchhe'smine May 18, 2016 0 0 Get merch Get the chubberduckery mug. Buy Now — $32.95 See more merch