Donuth Share definition Flag The REAL plural form of "donuts". This word is often used when your mouth is full, and instead of saying "donuts" you say "DONUTH!" "Dude, you ate all of the donuts" "What am i supposed eat then? "LETH DONUTH"! Donuth by zack11234 March 14, 2010 0 0 Get merch Get the Donuth mug. Buy Now — $32.95 See more merch