titty fish Share definition Flag Common term used for a person of the female gender, AKA one with two X Chromosomes, often times at the beach. The beach is covered with titty fish!! or I believe that titty fish just took the bait. titty fish by jeepmaniac September 8, 2008 0 0 Get merch Get the titty fish mug. Buy Now — $32.95 See more merch