Fatha's Day Share definition Flag The most confusing day in a Niggas life. I always be trippin on Fatha's Day cause I don't who he be. *cries tough like a real G* Fatha's Day by Psychobillypimpstyle January 27, 2003 0 0 Get merch Get the Fatha's Day mug. Buy Now — $32.95 See more merch