Goodishlyfulinessish Share definition Flag To be in a mood where you feel like you have to make up an uber long word just to express yourself. Dia felt so goodishlyfulinessish that day that she made up 7 words. Goodishlyfulinessish by Dia May 6, 2004 0 0 Get merch Get the Goodishlyfulinessish mug. Buy Now — $32.95 See more merch