gigafap Share definition Flag a unit of sexual pleasure; 1,000,000,000 faps, or the equivalent of 1 billion fapsworth of sexual pleasure "She would easily be 9 gigafaps" "I need some gigafaps in my life" gigafap by tchieze December 13, 2015 0 0 Get merch Get the gigafap mug. Buy Now — $32.95 See more merch