gayness Share definition Flag A word that pisses me off because it isn't a real word. The word that should be used is "gaiety." "Gayety" also works. People are probably going to think I have great gaiety for posting this definition. gayness by (The Very Straight) Davidus February 15, 2005 0 0 Get merch Get the gayness mug. Buy Now — $32.95 See more merch