trayboard Share definition Flag To use a cafeteria or McDonald's serving tray to catch waves. Originated on Oahu, Hawaii. Action: trayboarding. Ay bro, you bring your bodyboard? Nah bra, I goin trayboarding today. trayboard by Taha Gaya November 7, 2006 0 0 Get merch Get the trayboard mug. Buy Now — $32.95 See more merch