fupa day Share definition Flag It is on august 10th. Be sure to celebrate. Find a girl with a fupa and fuck her 10 times. This is why its fupa day. fupa day by lovvvvvvvvvvvvvvvvvvvve February 26, 2010 0 0 Get merch Get the fupa day mug. Buy Now — $32.95 See more merch